[BACKEND] Add !is_live match-filter by default to TV show presets (#735)
Any YouTube channel with an active livestream would make ytdl-sub hang until it completed. This adds a match-filter to skip live videos by default for all prebuild TV show presets.
More info on match-filters here: https://ytdl-sub.readthedocs.io/en/latest/config.html#match-filters