Search plugin

[ntno]

Description

• add built in search plugin support (modal based off mkdocs theme)
• add fontawesome icons
• manual testing of search plugin and search exclusion plugin (docs and automated tests to follow)
• fixed meta attribute in top nav

References

https://www.mkdocs.org/dev-guide/themes/#search-and-themes https://github.com/mkdocs/mkdocs/tree/master/mkdocs/themes/mkdocs https://squidfunk.github.io/mkdocs-material/setup/setting-up-site-search/

Testing

• [ ] This change adds test coverage for new/changed/fixed functionality

Checklist

• [ ] I have added documentation for new/changed functionality in this PR or in mkdocs-terminal/documentation
• [x] All active GitHub checks for tests, formatting, and security are passing