This should have been removed in 2e30052d.

Extract the type definitions for the `<mosaic-book>` element provided by
VitalSource into `src/types/vitalsource.ts` and use JSDoc + TS to
typecheck the fake implementation in vitalsource-mosaic-book-element.js.

Extracting the definitions into a standalone module avoids the need for TS to
process all of the transitive dependencies of src/annotator/integrations/vitalsource.ts
when processing the dev-server/tsconfig.json project.

This isn't currently used, but it is marked as a required property in
the `TableOfContentsEntry` interface in src/annotator/integrations/vitalsource.ts.

This API is now called when creating annotations.

Work around an issue where the `getCurrentPage` API can return incorrect
chapter titles [1] by using titles from the `getTOC` API instead.

[1] https://github.com/hypothesis/client/issues/4986

Move these functions so they can be used by EPUB integrations in the
annotator code.

Rename internal component to avoid type conflict with external
`ToastMessage` type

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)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: sass
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: npm-packlist
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: katex
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: "@typescript-eslint/parser"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: "@sentry/browser"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: "@rollup/plugin-terser"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: "@rollup/plugin-commonjs"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: "@npmcli/arborist"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: indirect
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: decode-uri-component
  dependency-type: indirect
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: "@npmcli/arborist"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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)

---
updated-dependencies:
- dependency-name: "@babel/core"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

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.