WebOS 4 apparently has a ligature bug that prevents icons with an underscore from working as intended.
This replaces them with either the corresponding CSS class or unicode escape code, depending on context.
Refactoring is needed in order to be able to use CSS classes everywhere, so in the interest of time, this does the best available currently.
Fixes#678
Corrected the URL so it redirects to https automatically and the correct TLD.
With that said, the link feels out of place and lonely at the bottom of the dashboard, maybe 'Jellyfin Website' or something, the single word in the wild nags at me