* Use updated components and icons
* Refactor to eliminate external styles
  - Add tailwind utility class for `all: initial`

This gets us the correct AnnotateIcon

Bumps [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 5.35.1 to 5.36.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/parser/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v5.36.0/packages/parser)

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The same as we've done for all our other projects. The client only uses
tox to serve its Sphinx documentation site (the site that's published to
https://h.readthedocs.io/projects/client/en/latest/) locally. To test
run:

    make docs

and open http://localhost:8000/

This is not used directly by the client any more, although it is a
still a transitive dependency of fetch-mock.

None of the existing polyfills are used in any supported browsers, and going
forwards we have tentatively agreed [1] to use regular imports for polyfills,
instead of this extra machinery.

This should make it easier to see where polyfills have come from,
and the worse ergonomics (eg. of having to add an extra import, calling a
standalone function instead of a method) haven't proven a major issue.

[1] See discussion on https://github.com/hypothesis/client/pull/4722

Bumps [sass](https://github.com/sass/dart-sass) from 1.54.5 to 1.54.6.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](https://github.com/sass/dart-sass/compare/1.54.5...1.54.6)

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Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.16.1 to 0.16.2.
- [Release notes](https://github.com/KaTeX/KaTeX/releases)
- [Changelog](https://github.com/KaTeX/KaTeX/blob/main/CHANGELOG.md)
- [Commits](https://github.com/KaTeX/KaTeX/compare/v0.16.1...v0.16.2)

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Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1204.0 to 2.1205.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Changelog](https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js/compare/v2.1204.0...v2.1205.0)

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5.4.0 has a breaking change of swapping out `Unstyled` components in
favor of `Base` components. This is the only place an `Unstyled`
component was actually used.

These values were passed to various static methods of `Object` in the function
body, and TypeScript complains if it can't be sure that the value is an object.

TypeScript 4.8 complains if code attempts to destructure an argument
that is marked as optional. The function arguments are still practically
optional because they have a default value.

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.7.4 to 4.8.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v4.7.4...v4.8.2)

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Make it clear that we are testing for a property that the object does not have.
Co-authored-by: Lyza Gardner <439947+lyzadanger@users.noreply.github.com>

`hasOwnProperty` is unsafe if called on an object which may potentially
have its own or an inherited property called "hasOwnProperty" or which
has a null prototype. Add a polyfill for the modern alternative and
remove the ESLint suppression.

 - Replace various uses of `hasOwnProperty` with `hasOwn` polyfill. In
   tests we can use `Object.hasOwn` directly, since tests only run in
   modern browsers.

 - Remove obsolete `Object.assign` polyfill in `parse-json-config.js`.
   IE 10/11 have been unsupported for long enough that I think we can
   stop worrying about it in the boot script.

Remove a workaround that was needed for IE 11 and Edge Legacy, which are
no longer supported.

Bumps [puppeteer](https://github.com/puppeteer/puppeteer) from 16.2.0 to 17.0.0.
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Changelog](https://github.com/puppeteer/puppeteer/blob/main/CHANGELOG.md)
- [Commits](https://github.com/puppeteer/puppeteer/compare/v16.2.0...v17.0.0)

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Bumps [npm-packlist](https://github.com/npm/npm-packlist) from 5.1.1 to 5.1.3.
- [Release notes](https://github.com/npm/npm-packlist/releases)
- [Changelog](https://github.com/npm/npm-packlist/blob/main/CHANGELOG.md)
- [Commits](https://github.com/npm/npm-packlist/compare/v5.1.1...v5.1.3)

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Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.16.0 to 0.16.1.
- [Release notes](https://github.com/KaTeX/KaTeX/releases)
- [Changelog](https://github.com/KaTeX/KaTeX/blob/main/CHANGELOG.md)
- [Commits](https://github.com/KaTeX/KaTeX/compare/v0.16.0...v0.16.1)

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Bumps [eslint-plugin-react](https://github.com/jsx-eslint/eslint-plugin-react) from 7.30.1 to 7.31.1.
- [Release notes](https://github.com/jsx-eslint/eslint-plugin-react/releases)
- [Changelog](https://github.com/jsx-eslint/eslint-plugin-react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jsx-eslint/eslint-plugin-react/compare/v7.30.1...v7.31.1)

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Bumps [eslint](https://github.com/eslint/eslint) from 8.22.0 to 8.23.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v8.22.0...v8.23.0)

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Bumps [core-js](https://github.com/zloirock/core-js) from 3.24.1 to 3.25.0.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/zloirock/core-js/compare/v3.24.1...v3.25.0)

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Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1199.0 to 2.1204.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Changelog](https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js/compare/v2.1199.0...v2.1204.0)

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Bumps [@babel/preset-typescript](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-typescript) from 7.16.7 to 7.18.6.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.18.6/packages/babel-preset-typescript)

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Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.18.10 to 7.18.13.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.18.13/packages/babel-core)

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This fixes a warning about `$imports` and Babel's scope tracker, that
was emitted when building the tests bundle.

This serves as a test case for converting a non-JSX file with non-trivial types
to TypeScript.

This initial conversion serves as a test case for converting a JSX-using
module to TypeScript syntax.

Enable TypeScript in ESLint following the Quickstart at
https://typescript-eslint.io/docs/.

The @typescript-eslint parser appears to assume that files are modules
by default, so directory-specific configs in dev-server/, scripts/ and
src/ have been updated accordingly.

Support .ts and .tsx files in non-test code.

Various annotator UI components use rem-based font sizes to try and make the
annotator UI match the document. However various sites (eg. Stack Overflow,
OpenStax) set the root font size to a value that results in the Hypothesis UI
elements having unreadably small or excessively large text. Also for these sites
the rem-size doesn't reflect the actual "default" font size of the page as
perceived by the user.

To resolve this, change the font sizes from using rem units to a value
calculated from a `--hypothesis-font-size` CSS variable. This variable is set to
match 1rem, but clamped to ensure that our UI text is always readable.

Fixes https://github.com/hypothesis/client/issues/4615

Reword comment for readability
Co-authored-by: Lyza Gardner <439947+lyzadanger@users.noreply.github.com>

This fixes an issue where the `show` method could position the adder
incorrectly if the emptiness of `annotationsForSelection` changed since
the adder was previously displayed. This is because the size of the
adder was outdated at the point when `show` calls `_calculateTarget` to
determine the adder position. Re-rendering as soon as
`annotationsForSelection` changes resolves this.

Fixes #3293

Work around an issue on OpenStax pages where a `* { overflow: auto }` rule
causes `<hypothesis-*>` elements to clip their contents. This issue prevented
the adder toolbar from being shown when text was selected.

I chose to use a `:host` rule here so that the rule could be colocated in the
same stylesheet as the rest of the styles related to these elements. However
this does mean that `!important` needs to be used for any rule that might
conflict with a host page rule. See Stack Overflow links in comments.

Fixes #4641