webui: /play - direct streaming for no user-agent providers, remove VLC for direct

(note vlc is fine with playlists and shows the correct title for matroska)
config: fix prefer_picon name in the storage structure, fixes #2413
profile: fix timeshift creation for htsp profile, add more timeshift logs
HELP: Update image for help

-Configuration > General
-Channel/EPG > Channels
WEBUI: Changed icon

-Clean icon image cache
-Reset Icon