Implement new groups menu design built on groups menu

Also mock the `MenuItem` component manually so that any problems with
that component won't cause a cascade of failures in `GroupListItem`.

This covers the functionality related to the submenu for group list items.

Conditionally rendered items create boolean `false` entries in the
`children` prop when the condition is false.

To indicate that there are no special restrictions on the `children`
prop here beyond them being some kind of renderable content, I've opted
for the `any` prop type.

Avoid showing a focus ring on the item when activating it via
touch/mouse for consistency with how other tab-reachable parts of the
menu and top bar work.

Group names are user supplied and can be up to 25 chars, so allow more
space for this.

This can be used to set a custom minimum width for a particular menu for
example.

The name of the "groups" service is slightly ambiguous in this context.
We can't rename the prop because service dependencies are resolved by
name and the service is called "groups" when registered with Angular.

Convert portions of login-control component to (preact) UserMenu component

Open sidebar when highlighting while logged-out

Previously the error message about not being able to create
annotations when logged out only mentioned annotations but,
technically you cannot create highlights either. Change the
error message to include highlights as well.

When the user creates a highlight while logged out, they appear to
work however, they silently do not get saved. An error message
does pop up in the sidebar informing them they cannot create annotations
when not logged in but they don't see it because the sidebar does not
open when creating a highlight. This makes the error message more
apparent to the user by popping open the sidebar.

Bump prettier from 1.17.1 to 1.18.2

Bump raven-js from 3.27.1 to 3.27.2

Bump enzyme from 3.9.0 to 3.10.0

Bumps [enzyme](https://github.com/airbnb/enzyme/tree/HEAD/packages/enzyme) from 3.9.0 to 3.10.0.
- [Release notes](https://github.com/airbnb/enzyme/releases)
- [Changelog](https://github.com/airbnb/enzyme/blob/master/CHANGELOG.md)
- [Commits](https://github.com/airbnb/enzyme/commits/enzyme@3.10.0/packages/enzyme)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump enzyme-adapter-preact-pure from 1.13.2 to 1.13.4

Bump @octokit/rest from 16.27.3 to 16.28.0

Bump autoprefixer from 9.5.1 to 9.6.0

Bumps [raven-js](https://github.com/getsentry/raven-js) from 3.27.1 to 3.27.2.
- [Release notes](https://github.com/getsentry/raven-js/releases)
- [Changelog](https://github.com/getsentry/sentry-javascript/blob/master/CHANGELOG.md)
- [Commits](https://github.com/getsentry/raven-js/compare/v3.27.1...v3.27.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [enzyme-adapter-preact-pure](https://github.com/preactjs/enzyme-adapter-preact-pure) from 1.13.2 to 1.13.4.
- [Release notes](https://github.com/preactjs/enzyme-adapter-preact-pure/releases)
- [Changelog](https://github.com/preactjs/enzyme-adapter-preact-pure/blob/master/CHANGELOG.md)
- [Commits](https://github.com/preactjs/enzyme-adapter-preact-pure/compare/v1.13.2...v1.13.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [prettier](https://github.com/prettier/prettier) from 1.17.1 to 1.18.2.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/master/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/1.17.1...1.18.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@octokit/rest](https://github.com/octokit/rest.js) from 16.27.3 to 16.28.0.
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](https://github.com/octokit/rest.js/compare/v16.27.3...v16.28.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 9.5.1 to 9.6.0.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/postcss/autoprefixer/compare/9.5.1...9.6.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Move onForceVisible to annotation-thread

Implement a new version of the groups menu based on the new drop-down
menu component.

This re-introduces the ability to leave a group and go to the activity
page for a group from the groups menu.

Create `SortMenu` component in new menu style