Mkdocs-static-i18n

- **material**: add a special "null" locale to generated a fixed fixed item in the lang switcher (270)
- **reconfigure**: allow the default language to use localized files or not wrt issue 262 (269)

- **get_file_from_path**: resolving root path '.' should point to 'index.md', thx to gnaegi

- **plugin**: fix handling of files with dotted suffixes, thx to gnaegi (259)

- **assets**: Handle more assets, by Kamil Krzyśków
- **plugin**: Fix build log info about directory, by Kamil Krzyśków
- **utils**: Fix logging filter class name, by Kamil Krzyśków
- **plugin**: Improve logging in general, by Kamil Krzyśków
- **plugin**: Use new filter to hide log duplicates, by Kamil Krzyśków

- **plugin**: add support for --dirty and --dirtyreload (249), by AngryMane
- **plugin**: fix and improve reconfigure_search_duplicates (253), by AngryMane
- **ci(github)**: add docs build test and deploy on push to main

- **plugin**: on_page_context providing wrong page context data