Sidebar refactoring

 Conflicts:
	package.json

Bump stylelint from 11.1.1 to 12.0.0

Bump rollup from 1.27.4 to 1.27.5

Bumps [stylelint](https://github.com/stylelint/stylelint) from 11.1.1 to 12.0.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint/compare/11.1.1...12.0.0)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bumps [rollup](https://github.com/rollup/rollup) from 1.27.4 to 1.27.5.
- [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/v1.27.4...v1.27.5)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bump rollup-plugin-babel-minify from 9.1.0 to 9.1.1

Bump nodemon from 1.19.4 to 2.0.1

Bump stylelint-config-twbs-bootstrap from 0.9.0 to 1.0.0

Bump rollup-plugin-multi-input from 1.0.2 to 1.0.3

Bumps [rollup-plugin-babel-minify](https://github.com/Comandeer/rollup-plugin-babel-minify) from 9.1.0 to 9.1.1.
- [Release notes](https://github.com/Comandeer/rollup-plugin-babel-minify/releases)
- [Changelog](https://github.com/Comandeer/rollup-plugin-babel-minify/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Comandeer/rollup-plugin-babel-minify/compare/v9.1.0...v9.1.1)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bumps [nodemon](https://github.com/remy/nodemon) from 1.19.4 to 2.0.1.
- [Release notes](https://github.com/remy/nodemon/releases)
- [Commits](https://github.com/remy/nodemon/compare/v1.19.4...v2.0.1)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bump terser from 4.3.9 to 4.4.0

Bump eslint-plugin-unicorn from 12.1.0 to 13.0.0

Bump eslint from 6.6.0 to 6.7.1

Bump rollup from 1.26.2 to 1.27.4

Bump @babel/preset-env from 7.7.1 to 7.7.4

mention Liquid so new users have correct expectations