Added health check to Torrent/NZB providers that looks for a http return code of 200 using their base url.
Refactored misc function names.

Fixed "unsupported operand type(s) for +=: 'NoneType' and 'str'" in _get_episode_search_strings function.
Fixed "invalid literal for int() with base 10" in load_from_nfo function.
Fixed "'NoneType' object has no attribute 'text'" in get_rss_feed function.
Added health check for backend API.

Refactored announcement cards and layout for view.

Fixed issues with login cookies not storing in chrome or safari browsers causing failed login attempts.

Cookie decoded to string from byte-string, resolves issues with json decoding and login issues.

Refactored yarn install command inside gitlab ci/cd script