The `/* istanbul ignore next */` comment was not working as expected. Just
writing the test was the easiest solution.

This truncation is unicode-aware. There are other places in the app where do
truncation that are not. These could reuse the `truncate` utility to fix this in
future.

 - Add the document title to the suggested filename for exports, to make
   it unique across different documents by default.

 - Move `export-annotations.ts` to the `helpers/` directory, since it
   contains functions that are very much application-specific. The
   `util/` directory contains code which is potentially usable in other
   applications or libraries / is less domain specific.

 - Add a note about how filenames that are invalid on the user's system
   are handled

Part of https://github.com/hypothesis/client/issues/5709

Since we capture these errors and present a toast to the user, they won't get
sent via the usual unhandled exception mechanisms, so forward them explicitly to
Sentry.

Part of https://github.com/hypothesis/client/issues/5741

This will make triaging any user reports of issues easier. It would look better
if we could present the details in a separate dialog, but this is a starting
point.

Also disable auto-dismiss for non-success statuses so the user is less likely to
miss them.

Part of https://github.com/hypothesis/client/issues/5741

Fixes https://github.com/hypothesis/client/issues/5774

Fixes https://github.com/hypothesis/client/issues/5757

Prevent the user from importing annotations until we have:

 - A group to import into
 - A set of existing annotations to match against
 - Document metadata to use for the new annotations

I considered replacing the whole dialog with a `LoadingSpinner` until these
conditions are met, like the Export dialog does, but it makes for a less jumpy
transition when eg. switching groups if we just disable the button.

Bumps [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 6.2.1 to 6.4.1.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
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- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v6.4.1/packages/parser)

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Bumps [npm-packlist](https://github.com/npm/npm-packlist) from 7.0.4 to 8.0.0.
- [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/v7.0.4...v8.0.0)

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Bumps [typescript](https://github.com/Microsoft/TypeScript) from 5.1.6 to 5.2.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v5.1.6...v5.2.2)

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Bumps [eslint](https://github.com/eslint/eslint) from 8.47.0 to 8.48.0.
- [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/v8.47.0...v8.48.0)

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Bumps [chai](https://github.com/chaijs/chai) from 4.3.7 to 4.3.8.
- [Release notes](https://github.com/chaijs/chai/releases)
- [Changelog](https://github.com/chaijs/chai/blob/4.x.x/History.md)
- [Commits](https://github.com/chaijs/chai/compare/v4.3.7...v4.3.8)

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Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1440.0 to 2.1445.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Commits](https://github.com/aws/aws-sdk-js/compare/v2.1440.0...v2.1445.0)

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Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 6.4.0 to 6.4.1.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v6.4.1/packages/eslint-plugin)

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Bumps [@types/scroll-into-view](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/scroll-into-view) from 1.16.0 to 1.16.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/scroll-into-view)

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Bumps [@rollup/plugin-node-resolve](https://github.com/rollup/plugins/tree/HEAD/packages/node-resolve) from 15.2.0 to 15.2.1.
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/node-resolve/CHANGELOG.md)
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Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.22.10 to 7.22.11.
- [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/v7.22.11/packages/babel-core)

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Record the fact that imported annotations were created via the client's import
mechanism, and the original ID of the annotation. This is currently stored in
the `extra` field. h supports setting arbitrary fields at the top level of
annotations, so we could have put the data there instead. However using the
`extra` field for custom fields is a convention already used by some API
clients, and is distinct from a standard/validated field if we add one later on.

Fixes https://github.com/hypothesis/client/issues/5738

Speed up large imports by allowing up to 5 imports to be in-flight concurrently.
The simplest approach to this would be to divide the annotations into batches
and save one at a time. However due to the variability in the time that an
individual import can take, this can lead to sub-optimal concurrency. Instead
structure the code so that we try to always keep `MAX_CONCURRENT_IMPORTS`
imports in flight at once, as long as there are that many remaining.

Fixes https://github.com/hypothesis/client/issues/5739

This ensures that the count of annotations displayed in the Export tab matches
the count of top-level annotations that we show in the user list, and actually
import, in the Import tab.

When reporting unsaved annotations, use the term "draft" which covers both
annotations and replies.

Part of https://github.com/hypothesis/client/issues/5742

Simplify test to just check the essential `<details>`-related behavior compared
to other tests.

In the initial implementation of import, we have decided to exclude replies to
simplify the feature. In other words, the import feature only supports importing
top level annotations from a single user.