Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.19. **This update includes a security fix.**
- [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-preview[bot] <support@dependabot.com>

Fixed css .search-active.main

Improve accessibility by adding label to Anchor links.

I ran Lighthouse on just-the-docs and noticed the anchor links
were missing a "discernible name".

This adds aria-labelledby to the header element to improve these for
screenreaders.

Remove collapsible TOC on nav doc

Pdmosses collapsible toc

Merge branch 'collapsible-toc' of git://github.com/pdmosses/just-the-docs into pdmosses-collapsible-toc

Bump @primer/css from 14.3.0 to 14.4.0

Bump stylelint from 13.3.3 to 13.6.1

Bump stylelint-config-prettier from 8.0.1 to 8.0.2

Bumps [@primer/css](https://github.com/primer/css) from 14.3.0 to 14.4.0.
- [Release notes](https://github.com/primer/css/releases)
- [Changelog](https://github.com/primer/css/blob/master/CHANGELOG.md)
- [Commits](https://github.com/primer/css/compare/v14.3.0...v14.4.0

)

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

Bumps [stylelint-config-prettier](https://github.com/prettier/stylelint-config-prettier) from 8.0.1 to 8.0.2.
- [Release notes](https://github.com/prettier/stylelint-config-prettier/releases)
- [Commits](https://github.com/prettier/stylelint-config-prettier/compare/v8.0.1...v8.0.2

)

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

Bump version numbers

Add print styles

Remove constraint with jekyll 4.1.0

Navigation improvements and search sections

Co-authored-by: Patrick Marsceill <pmarsceill@users.noreply.github.com>