Disable auto-hiding scrollbar in legacy Edge to avoid overlap, making it impossible to interact with the content.

* run the action on PRs too
* specify `javascript` language
* remove comments
* reindent

Co-authored-by: XhmikosR <xhmikosr@gmail.com>

Co-authored-by: XhmikosR <xhmikosr@gmail.com>

The latest `actions/setup-node` prints this info by default

Bumps [find-unused-sass-variables](https://github.com/XhmikosR/find-unused-sass-variables) from 1.0.5 to 2.0.0.
- [Release notes](https://github.com/XhmikosR/find-unused-sass-variables/releases)
- [Commits](https://github.com/XhmikosR/find-unused-sass-variables/compare/v1.0.5...v2.0.0

)

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* Bump eslint-plugin-unicorn from 18.0.1 to 19.0.1

Bumps [eslint-plugin-unicorn](https://github.com/sindresorhus/eslint-plugin-unicorn) from 18.0.1 to 19.0.1.
- [Release notes](https://github.com/sindresorhus/eslint-plugin-unicorn/releases)
- [Commits](https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v18.0.1...v19.0.1

)

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* ESlint: disable a few new rules for now.

* unicorn/no-fn-reference-in-iterator
* unicorn/no-null

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: XhmikosR <xhmikosr@gmail.com>

Bumps [postcss-cli](https://github.com/postcss/postcss-cli) from 7.1.0 to 7.1.1.
- [Release notes](https://github.com/postcss/postcss-cli/releases)
- [Changelog](https://github.com/postcss/postcss-cli/blob/master/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss-cli/compare/7.1.0...7.1.1

)

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Bumps [hugo-bin](https://github.com/fenneclab/hugo-bin) from 0.57.0 to 0.57.2.
- [Release notes](https://github.com/fenneclab/hugo-bin/releases)
- [Commits](https://github.com/fenneclab/hugo-bin/compare/v0.57.0...v0.57.2

)

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Co-authored-by: XhmikosR <xhmikosr@gmail.com>

Bumps [rollup](https://github.com/rollup/rollup) from 2.6.1 to 2.7.3.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.6.1...v2.7.3

)

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Bumps [node-sass](https://github.com/sass/node-sass) from 4.13.1 to 4.14.0.
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sass/node-sass/compare/v4.13.1...v4.14.0

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

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Co-authored-by: XhmikosR <xhmikosr@gmail.com>

Bumps [terser](https://github.com/terser/terser) from 4.6.11 to 4.6.12.
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/compare/v4.6.11...v4.6.12

)

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Bumps [shelljs](https://github.com/shelljs/shelljs) from 0.8.3 to 0.8.4.
- [Release notes](https://github.com/shelljs/shelljs/releases)
- [Changelog](https://github.com/shelljs/shelljs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/shelljs/shelljs/compare/v0.8.3...v0.8.4

)

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- Rename available vars section to root vars and mention they're globally available
- Add new component vars section and link to table docs for WIP example

- Broke up existing theming page into separate pages
- Audited and updated each new docs page (some pages include some TBD sections)
- Update sidenav to reflect changes
- Fix links that pointed to the old Theming page
- Update docs styles to reflect recent changes
- Rewrite some bits in the Migration page

- Rename `$enable-prefers-reduced-motion-media-query` to `$enable-reduced-motion`
- Rename `$enable-pointer-cursor-for-buttons` to `$enable-button-pointers`

Co-Authored-By: Mark Otto <markd.otto@gmail.com>