Revert "Improve compression of JavaScript bundles"

Fix cause of flakiness in `observeElementSize` test

Improve compression of JavaScript bundles

Replace `share-annotation-dialog` with preact `AnnotationShareControl`

Add preact component for sharing a single annotation. Replace use of
`share-annotation-dialog` within the `annotation` component with this
new component.

Bump @sentry/browser from 5.9.0 to 5.9.1

 - Wait for a specific event, the observer callback being called, when
   possible. This avoids a possible issue where
   `ResizeObserver`/`MutationObserver` callbacks would not be delivered
   within the fixed time
 - Fix a typo in the name of the test file

Original issue report: https://hypothes-is.slack.com/archives/C1M8NH76X/p1574692275043700

Bump autoprefixer from 9.7.1 to 9.7.2

Bump sass from 1.23.6 to 1.23.7

Bump scroll-into-view from 1.12.2 to 1.12.3

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 9.7.1 to 9.7.2.
- [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/9.7.1...9.7.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump angular-mocks from 1.7.8 to 1.7.9

Bump postcss from 7.0.21 to 7.0.23

Previously only the _contents_ of modules were minified, but not the
module infrastructure that Browserify adds around it. Given lots of modules,
this adds up.

Replace `uglifify` with a small wrapper around terser, the package that
actually compresses the code, and use it to minify both the contents of
modules and the generated wrapper code. Calling terser directly allows
us to a) use the current version of it (uglifyify was stuck on Terser
3.x) and b) upgrade/configure/replace it more directly in future.

One other change here is that minifying modules is now done _after_ the
transform that replaces `if (process.env.NODE_ENV == ...)` checks with
`if (true)` or `if (false)`. This enables dead-code removal to remove
the logic entirely.

This reduces the minified size of `sidebar.bundle.js` from 368 KB to 311
KB (-15%) and `annotator.bundle.js` from 170 KB to 152 KB (-12.7%).
Some vendor bundles are smaller, others are unaffected because they were
already fully minified. The total minified size of all bundles is reduced by ~7%.

Bumps [angular-mocks](https://github.com/angular/angular.js) from 1.7.8 to 1.7.9.
- [Release notes](https://github.com/angular/angular.js/releases)
- [Changelog](https://github.com/angular/angular.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/angular/angular.js/compare/v1.7.8...v1.7.9)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bump angular-route from 1.7.8 to 1.7.9

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.21 to 7.0.23.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/master/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/7.0.21...7.0.23)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Merge pull request #1534 from hypothesis/dependabot/npm_and_yarn/karma-coverage-istanbul-reporter-2.1.1

Bump karma-coverage-istanbul-reporter from 2.1.0 to 2.1.1

Bumps [@babel/preset-env](https://github.com/babel/babel) from 7.7.1 to 7.7.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.7.1...v7.7.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [eslint](https://github.com/eslint/eslint) from 6.6.0 to 6.7.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v6.6.0...v6.7.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.573.0 to 2.578.0.
- [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/v2.573.0...v2.578.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [karma-coverage-istanbul-reporter](https://github.com/mattlewis92/karma-coverage-istanbul-reporter) from 2.1.0 to 2.1.1.
- [Release notes](https://github.com/mattlewis92/karma-coverage-istanbul-reporter/releases)
- [Changelog](https://github.com/mattlewis92/karma-coverage-istanbul-reporter/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mattlewis92/karma-coverage-istanbul-reporter/compare/v2.1.0...v2.1.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [angular-route](https://github.com/angular/angular.js) from 1.7.8 to 1.7.9.
- [Release notes](https://github.com/angular/angular.js/releases)
- [Changelog](https://github.com/angular/angular.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/angular/angular.js/compare/v1.7.8...v1.7.9)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [scroll-into-view](https://github.com/KoryNunn/scroll-into-view) from 1.12.2 to 1.12.3.
- [Release notes](https://github.com/KoryNunn/scroll-into-view/releases)
- [Changelog](https://github.com/KoryNunn/scroll-into-view/blob/master/CHANGELOG.md)
- [Commits](https://github.com/KoryNunn/scroll-into-view/commits)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@sentry/browser](https://github.com/getsentry/sentry-javascript) from 5.9.0 to 5.9.1.
- [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/5.9.0...5.9.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [sass](https://github.com/sass/dart-sass) from 1.23.6 to 1.23.7.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sass/dart-sass/compare/1.23.6...1.23.7)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@babel/core](https://github.com/babel/babel) from 7.7.2 to 7.7.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.7.2...v7.7.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@babel/preset-react](https://github.com/babel/babel) from 7.7.0 to 7.7.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.7.0...v7.7.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Rename the username to userid in selection module

The username was really the userid and was named incorrectly.
Still allow username in the config to work in the meantime until its depreciated in LMS

Convert SASS files to SASS modules