Share Annotations Panel 2 of 4: Add base `SidebarPanel` component and store module

Bumps [@octokit/rest](https://github.com/octokit/rest.js) from 16.32.0 to 16.33.0.
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](https://github.com/octokit/rest.js/compare/v16.32.0...v16.33.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 2.0.4 to 2.0.5.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](https://github.com/cure53/DOMPurify/compare/2.0.4...2.0.5)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.543.0 to 2.545.0.
- [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/v2.543.0...v2.545.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@babel/preset-react](https://github.com/babel/babel) from 7.0.0 to 7.6.3.
- [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/v7.0.0...v7.6.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@babel/preset-env](https://github.com/babel/babel) from 7.6.2 to 7.6.3.
- [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/v7.6.2...v7.6.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [enzyme-adapter-preact-pure](https://github.com/preactjs/enzyme-adapter-preact-pure) from 2.0.2 to 2.1.0.
- [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/v2.0.2...v2.1.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [eslint-plugin-react](https://github.com/yannickcr/eslint-plugin-react) from 7.14.3 to 7.16.0.
- [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/v7.14.3...v7.16.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Enable Chrome tracing during startup

This enables very detailed logging of network activity, page execution
and script execution for 7 seconds after startup.

This is part of debugging frequent CI build failures in the client repo
on Jenkins. From the Karma logs I can see that all of the test files are
requested from the Karma server, but none of the log messages associated
with test execution are seen. This tracing should make it possible to
find out which JS scripts even execute.

Share Annotations Panel 1 of 4: Update icons; allow inline icons

Change SASS processing pipeline to match h, lms projects

Don't built the client a second time when running "npm publish"

Bump gulp-changed from 4.0.1 to 4.0.2

Bump autoprefixer from 9.6.1 to 9.6.4

Bump aws-sdk from 2.538.0 to 2.543.0

Bump cross-env from 6.0.0 to 6.0.3

Bump preact from 10.0.0-rc.3 to 10.0.0

Bumps [@octokit/rest](https://github.com/octokit/rest.js) from 16.30.1 to 16.32.0.
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](https://github.com/octokit/rest.js/compare/v16.30.1...v16.32.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [cross-env](https://github.com/kentcdodds/cross-env) from 6.0.0 to 6.0.3.
- [Release notes](https://github.com/kentcdodds/cross-env/releases)
- [Changelog](https://github.com/kentcdodds/cross-env/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kentcdodds/cross-env/compare/v6.0.0...v6.0.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [eslint](https://github.com/eslint/eslint) from 6.5.0 to 6.5.1.
- [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/v6.5.0...v6.5.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [preact](https://github.com/preactjs/preact) from 10.0.0-rc.3 to 10.0.0.
- [Release notes](https://github.com/preactjs/preact/releases)
- [Commits](https://github.com/preactjs/preact/compare/10.0.0-rc.3...10.0.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [gulp-changed](https://github.com/sindresorhus/gulp-changed) from 4.0.1 to 4.0.2.
- [Release notes](https://github.com/sindresorhus/gulp-changed/releases)
- [Commits](https://github.com/sindresorhus/gulp-changed/compare/v4.0.1...v4.0.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.538.0 to 2.543.0.
- [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/v2.538.0...v2.543.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 9.6.1 to 9.6.4.
- [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/9.6.1...9.6.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [dompurify](https://github.com/cure53/DOMPurify) from 2.0.3 to 2.0.4.
- [Release notes](https://github.com/cure53/DOMPurify/releases)
- [Commits](https://github.com/cure53/DOMPurify/compare/2.0.3...2.0.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Fix an issue with the CI build where both the `yarn version` and
`npm publish` commands would both build the client's assets.

Since the output of the build process can be affected by environment
variables, this could lead to unexpected results if env vars were set
when running `yarn version` but not when running `npm publish`.

Fix sidebar app URL in production