This reverts commit 9ecedcf4.

The `formatDate` test failed for me locally due to Chrome using a "\u202F"
(Narrow non-breaking space) char between "11:02" and "PM", instead of a regular
space. Apply unicode normalization to ignore this difference.

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.9.3 to 4.9.4.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v4.9.3...v4.9.4)

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Bumps [sass](https://github.com/sass/dart-sass) from 1.56.1 to 1.56.2.
- [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/1.56.1...1.56.2)

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Bumps [postcss](https://github.com/postcss/postcss) from 8.4.19 to 8.4.20.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/8.4.19...8.4.20)

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Bumps [npm-packlist](https://github.com/npm/npm-packlist) from 7.0.2 to 7.0.4.
- [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/v7.0.2...v7.0.4)

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Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.16.3 to 0.16.4.
- [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/v0.16.3...v0.16.4)

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Bumps [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 5.45.0 to 5.46.0.
- [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/v5.46.0/packages/parser)

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Bumps [@sentry/browser](https://github.com/getsentry/sentry-javascript) from 7.23.0 to 7.24.2.
- [Release notes](https://github.com/getsentry/sentry-javascript/releases)
- [Changelog](https://github.com/getsentry/sentry-javascript/blob/master/CHANGELOG.md)
- [Commits](https://github.com/getsentry/sentry-javascript/compare/7.23.0...7.24.2)

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Bumps [@rollup/plugin-terser](https://github.com/rollup/plugins/tree/HEAD/packages/terser) from 0.1.0 to 0.2.0.
- [Release notes](https://github.com/rollup/plugins/releases)
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/terser/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/beep-v0.2.0/packages/terser)

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Bumps [@rollup/plugin-commonjs](https://github.com/rollup/plugins/tree/HEAD/packages/commonjs) from 23.0.3 to 23.0.4.
- [Release notes](https://github.com/rollup/plugins/releases)
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/commonjs/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/commonjs-v23.0.4/packages/commonjs)

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Bumps [@npmcli/arborist](https://github.com/npm/cli/tree/HEAD/workspaces/arborist) from 6.1.4 to 6.1.5.
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/workspaces/arborist/CHANGELOG.md)
- [Commits](https://github.com/npm/cli/commits/arborist-v6.1.5/workspaces/arborist)

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Bumps [certifi](https://github.com/certifi/python-certifi) from 2022.6.15 to 2022.12.7.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](https://github.com/certifi/python-certifi/compare/2022.06.15...2022.12.07)

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Bumps [decode-uri-component](https://github.com/SamVerschueren/decode-uri-component) from 0.2.0 to 0.2.2.
- [Release notes](https://github.com/SamVerschueren/decode-uri-component/releases)
- [Commits](https://github.com/SamVerschueren/decode-uri-component/compare/v0.2.0...v0.2.2)

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Bumps [@npmcli/arborist](https://github.com/npm/cli/tree/HEAD/workspaces/arborist) from 6.1.3 to 6.1.4.
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/workspaces/arborist/CHANGELOG.md)
- [Commits](https://github.com/npm/cli/commits/arborist-v6.1.4/workspaces/arborist)

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Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.20.2 to 7.20.5.
- [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/v7.20.5/packages/babel-core)

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This should give us a way to trigger CI for a PR if GitHub has failed to
do so for any reason.

Our updated shared `Input` component will bleat (console warning) if
it's not given either an `id` or an `aria-label`. Add `aria-label` here.

Clone instead of move SVG highlights when focusing such that their
original order is not lost when they are subsequently unfocused. Ensure
that cloned, focused highlights are removed when associated highlights
are removed.

Bumps [@rollup/plugin-babel](https://github.com/rollup/plugins/tree/HEAD/packages/babel) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/rollup/plugins/releases)
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/babel/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/babel-v6.0.3/packages/babel)

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Bumps [@sentry/browser](https://github.com/getsentry/sentry-javascript) from 7.21.1 to 7.23.0.
- [Release notes](https://github.com/getsentry/sentry-javascript/releases)
- [Changelog](https://github.com/getsentry/sentry-javascript/blob/master/CHANGELOG.md)
- [Commits](https://github.com/getsentry/sentry-javascript/compare/7.21.1...7.23.0)

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Bumps [@sentry/cli](https://github.com/getsentry/sentry-cli) from 2.9.0 to 2.10.0.
- [Release notes](https://github.com/getsentry/sentry-cli/releases)
- [Changelog](https://github.com/getsentry/sentry-cli/blob/master/CHANGELOG.md)
- [Commits](https://github.com/getsentry/sentry-cli/compare/2.9.0...2.10.0)

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Bumps [sinon](https://github.com/sinonjs/sinon) from 14.0.2 to 15.0.0.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/main/docs/changelog.md)
- [Commits](https://github.com/sinonjs/sinon/compare/v14.0.2...v15.0.0)

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Bumps [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 5.44.0 to 5.45.0.
- [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/v5.45.0/packages/parser)

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Bumps [eslint](https://github.com/eslint/eslint) from 8.28.0 to 8.29.0.
- [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/v8.28.0...v8.29.0)

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Bumps [@rollup/plugin-commonjs](https://github.com/rollup/plugins/tree/HEAD/packages/commonjs) from 23.0.2 to 23.0.3.
- [Release notes](https://github.com/rollup/plugins/releases)
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/commonjs/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/commonjs-v23.0.3/packages/commonjs)

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`Object.fromEntries` is showing up in Sentry as the most frequent error from
browsers [1] that are outside our supported range, so use it as a representative
feature to decide whether the client can load at all. We assume that this can
subsume the previous ES2015-era feature tests.

`Object.fromEntries` is available since Chrome 73 (Mar 2019), Safari
12.1 (Mar 2019), Firefox 63 (Oct 2018).

[1] https://sentry.io/organizations/hypothesis/issues/3747304654

The `getSegmentSelector` function assumed all annotations have at least one
target. This is true for all saved annotations and all new annotations with
selectors, but is not true for new page notes.

This is a stop-gap fix. The better solution will be to eliminate the
inconsistency and make it so that all annotations have a non-empty `target`
field.

Fixes https://github.com/hypothesis/product-backlog/issues/1332