* Updated config path to specify metadata storage path
* Removed metadata column from DB, replacing it with filepath columns
* Updated app to store compressed metadata; automatically download thumbnails
* Ensured metadata is deleted when other files are deleted
* Updated docs
* Added inets to application start so http calls work in prod
* Bumped up the line length because I fear no man
* Refactored indexing
Previously, indexing worked by collecting the video IDs of only videos
that matched indexing criteria. This new model instead stores ALL videos
for a given source, but will only _download_ videos that meet that criteria.
This lets us backfill without indexing, makes it easier to add in other
backends, lets us download one-off videos for a source that don't quite
meet criteria, you name it.
* Updated media finders to respect format filters; Added credo file
* [WIP] updated the output of VideoCollection to include playlists
* Updated source's name to collection_name; supported playlist ID/name fetching
* Hooked up collection_type to form; refactored enqueue_pending_media_downloads
* Added friendly_name to form
* Added media profile link to source view
* Updates comment
* Ensure channel detail lookup doesn't download the video - oops
* Ran the needful migrations for replacing channels with sources
* got media source test back working
* channel tasks test
* Media indexing worker test
* media tests
* Got all tests working except controller tests
* got all tests working
* Renamed Channel struct to Source
* renamed ChannelTasks
* More renaming; renamed channel details module
* Removed Channel yt-dlp module, instead throwing things in the VideoCollection module
* Renamed what looks like the last of the outstanding data
* Added subtitle options to media profile model
* Updated media profile form
* Adds subtitle-based options in options builder
* Updates metadata parser to include subtitles
* Adds subtitle_filepaths to media_item
* renamed video_filepath to media_filepath
* Added more fields to media profile show page
