Do not render the only-me icon while an annotation is being edited, as
the user can switch privacy settings in the editing mode, and those
changes could be at odds with "only me."

Highlight state is relevant on an annotation-by-annotation basis but
does not have any impact on whether an annotation is present or
visible (at all) to the user, which is what `selection` state is for.

At this time, remove highlight-state logic from thread-building as this
is an extra complexity for something that isn't implemented in the UI
anyway.

In future, to re-implement highlight styling, query the `annotations`
store state (perhaps add a `annotationIsHighlighted` selector for
convenience).

Refactor the way that focus-mode configuration is represented
in state and whittle down the API (selectors and actions) a little
for clarity.

Reduce the object depth for the focus-mode state. Use a single
function to configure focus mode. Concede that user-focus is the
only focus mode for now, and as such valid focus-mode configuration
must contain a (valid) user object.

Note: There is still some lingering inconsistency in the user
identifiers provided by the LMS app. Canvas speedgrader uses app
settings to configure focus mode (`js-config` object) and sets
the `username` property of the `user` object to a username-
formatted value (i.e. a username, no authority indicated). Non-
Canvas graders do not configure focus mode via the settings,
but instead dispatch RPC messages. These pass a `username`
property whose value is formatted like a userId
(`acct:<username>@authority>`) but it still provided via
the `username` property.

AFAIK, nobody/no service sends a `userid` property in the
focus-mode user object, but we document that we do support
it so I've left it extant until we figure this out.

- Use `Active` instead of `Focused` as it's easier to understand
- Use `toggleFocusMode` instead of `setFocusModeFocused`

- Rename `enabled` to `configured`

Bump lodash from 4.17.15 to 4.17.19

Add a script to assist with prop-types => JSDoc conversion

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.19.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.15...4.17.19)
Signed-off-by: dependabot[bot] <support@github.com>

- Remove logic yanking user away from orphans tab when clearing a
  selection
- Make sure all `selection` module actions use `setTab` when changing
  tab value
- Simplify tab constants
- Remove `sortKeysAvailable` from state and add selector instead

- Use `createSelector` in a few places
- Add utility function for creating "true-filled" maps from arrays
- Rename `truthyKeys` => `trueKeys`

- Make internal `highlighted` property an object
- Refactor `highlightAnnotations` action

- Rename `setCollapsed` to `setExpanded`, as that is more semantically accurate
  for what external users want, and refactor
- Add `expandedMap` selector so users can retrieve the full map (not just truthy keys)
- Update external users

- Rename adjectival form to `forcedVisible` (for variable references)
- Refactor `setForce[d]Visible` action
- Add selector `forcedVisibleAnnotations`
- Do not access store state directly for `forcedVisible

Use utility function to derive "truthy" keys in internal maps

- Rename internal property, make it always an object (never null)
- Add selector `selectedAnnotations`
- Update external modules to use `selectedAnnotations` instead of
  `getSelectedAnnotationMap` because it is more semantic
- Remove `getSelectedAnnotationMap` selector
- Refactor and clean up `toggleAnnotations` action
- Refactor and clean up `selectAnnotations` action

- Make internals of store state more consistent
- Prevent duplicate entries
- Allow for potential explicit `false` entries

Bump whatwg-fetch from 3.1.0 to 3.2.0

Bump puppeteer from 5.0.0 to 5.1.0

Bump @sentry/browser from 5.19.0 to 5.19.1

Bump autoprefixer from 9.8.4 to 9.8.5

Bump katex from 0.11.1 to 0.12.0

Bump sass from 1.26.9 to 1.26.10

Bumps [eslint-plugin-react-hooks](https://github.com/facebook/react/tree/HEAD/packages/eslint-plugin-react-hooks) from 4.0.5 to 4.0.8.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/packages/eslint-plugin-react-hooks/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/HEAD/packages/eslint-plugin-react-hooks)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 9.8.4 to 9.8.5.
- [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/9.8.4...9.8.5)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.706.0 to 2.713.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Changelog](https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js/compare/v2.706.0...v2.713.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) from 7.10.3 to 7.10.4.
- [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/v7.10.4/packages/babel-preset-env)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [eslint-plugin-react](https://github.com/yannickcr/eslint-plugin-react) from 7.20.1 to 7.20.3.
- [Release notes](https://github.com/yannickcr/eslint-plugin-react/releases)
- [Changelog](https://github.com/yannickcr/eslint-plugin-react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/yannickcr/eslint-plugin-react/compare/v7.20.1...v7.20.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@sentry/browser](https://github.com/getsentry/sentry-javascript) from 5.19.0 to 5.19.1.
- [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/5.19.0...5.19.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [puppeteer](https://github.com/puppeteer/puppeteer) from 5.0.0 to 5.1.0.
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Commits](https://github.com/puppeteer/puppeteer/compare/v5.0.0...v5.1.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [whatwg-fetch](https://github.com/github/fetch) from 3.1.0 to 3.2.0.
- [Release notes](https://github.com/github/fetch/releases)
- [Commits](https://github.com/github/fetch/compare/v3.1.0...v3.2.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.11.1 to 0.12.0.
- [Release notes](https://github.com/KaTeX/KaTeX/releases)
- [Changelog](https://github.com/KaTeX/KaTeX/blob/master/CHANGELOG.md)
- [Commits](https://github.com/KaTeX/KaTeX/compare/v0.11.1...v0.12.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>