* (bugfix): Added celerybeat extras to gitignore
* (bugfix): fixed missing regex denoter
* Fix .dockerignore node_modules pattern and add comprehensive exclusions
- Fix#1398: Change 'node_modules' to '**/node_modules' to exclude all nested directories
- Add patterns for Python bytecode, IDE files, logs, and build artifacts
- Consolidate node_modules patterns in .gitignore to use **/node_modules/
* Added frontend development files/environment
* More items-categories related removals
* Improvements in pages templates (inc. static pages)
* Improvements in video player
* Added empty home page message + cta
* Updates in media, playlist and management pages
* Improvements in material icons font loading
* Replaced media & playlists links in frontend dev-env
* frontend package version update
* chnaged frontend dev url port
* static files update
* Changed default position of theme switcher
* enabled frontend docker container
