(cherry picked from commit db50f282bab1e98397cc7434a811b8b7da2fe6dc)

(cherry picked from commit 6684f7c7faa15d6d59df35fbff9ea6666634d754)

(cherry picked from commit fd3c68cd1a39e059180c35c1d56ffa33ef4dfde4)

(cherry picked from commit 2b153ed074811e735aaa58d57a3fcdf7838e17f5)

(cherry picked from commit eeb3f342b17a744d0c2b2f0360359fa3276f8abd)

v0.2.6 release

Bump @primer/css from 12.3.1 to 12.6.0

[Security] Bump lodash from 4.17.11 to 4.17.15

Bump stylelint-config-primer from 7.0.0 to 7.0.1

Bump stylelint from 10.0.1 to 10.1.0

Search improvement branch

Content footer

Bumps [@primer/css](https://github.com/primer/css) from 12.3.1 to 12.6.0.
- [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/v12.3.1...v12.6.0

)

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