user loads video
	video is file:
		file has subs?
			load the first subs
			display all subs
			user selects new subs:
				load subs with given stream index
	video is YT link:
		download all subs (if any)
		subs?
			display the subs
			user selects subs (vtt)
				convert the subs to srt
				load subs
	there are no subs!?!?!:
		This is the spooky zone
		offer to upload a subtitle file?

		offer to attempt video OCR???
		attempt ASR + Translation? This would be fucking insane don't do this please don't add this feature this is literally impossible, right???