In preparation for enabling the `book_as_single_document` feature for everyone,
enable capturing the EPUBContentSelector selector whether the feature flag is
enabled or not.

Once this is released, all new VS annotations will have all the data they will
need after they are migrated to the new format [1] and only the annotation URL
will need to be changed. This will leave us with only a fixed set of older
annotations for which we will need to obtain the missing CFI and chapter title
data.

[1] See https://github.com/hypothesis/h/issues/7709

Change `EPUBContentSelector` selectors captured in VS books to include
the resolved URL of the content document (eg.
"https://jigsaw.vitalsource.com/books/{book_id}/...") rather than just
the path ("/books/{book_id}/...").

This may make it easier to work with these URLs outside of the VitalSource
viewer, and should also make these URLs more consistent with
`EPUBContentSelector` selectors captured in other ebook readers in future.

For text selection to work well it is important that `<hypothesis-text-word>`
elements do not span multiple lines. Previously the layout analysis only created
new words after a space. Since most lines end with a whole word, this was
sufficient in most cases. However this doesn't work if a word is broken across
multiple lines (eg. with a hyphen). To handle this case, also create a word
break if the current character does not vertically overlap the previous
character. This may create some false positives (ie. unnecessary word breaks),
but that doesn't harm text selection.

Fixes #5066

Bumps [sass](https://github.com/sass/dart-sass) from 1.56.2 to 1.57.1.
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Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1277.0 to 2.1286.0.
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Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 5.46.1 to 5.47.1.
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Bumps [@types/katex](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/katex) from 0.14.0 to 0.16.0.
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Bumps [@sentry/cli](https://github.com/getsentry/sentry-cli) from 2.10.0 to 2.11.0.
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Bumps [@sentry/browser](https://github.com/getsentry/sentry-javascript) from 7.27.0 to 7.28.1.
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Bumps [@rollup/plugin-json](https://github.com/rollup/plugins/tree/HEAD/packages/json) from 5.0.2 to 6.0.0.
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Bumps [sinon](https://github.com/sinonjs/sinon) from 15.0.0 to 15.0.1.
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Bumps [mocha](https://github.com/mochajs/mocha) from 10.1.0 to 10.2.0.
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Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1262.0 to 2.1277.0.
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Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 5.44.0 to 5.46.1.
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Bumps [@sentry/browser](https://github.com/getsentry/sentry-javascript) from 7.24.2 to 7.27.0.
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Bumps [@rollup/plugin-replace](https://github.com/rollup/plugins/tree/HEAD/packages/replace) from 5.0.1 to 5.0.2.
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Bumps [@rollup/plugin-commonjs](https://github.com/rollup/plugins/tree/HEAD/packages/commonjs) from 23.0.4 to 24.0.0.
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Co-locate these types with other types that are determined by the VitalSource
book reader, as opposed to us. This also gives us a single module
(types/vitalsource.ts) that we can point to in order to explain which APIs from
Bookshelf we rely on.

This is in response to https://github.com/hypothesis/client/pull/5065#pullrequestreview-1219224635.

In PDF-based VitalSource books, each page has a different CFI, but many pages
may belong to the same logical book chapter and thus share the same chapter
title. In the sidebar we only want to show one heading per chapter. Therefore
add logic in ThreadList to avoid showing the same heading multiple times in
succession.

Fixes https://github.com/hypothesis/client/issues/5064

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.