Add the ability to add streaming channels in the gui to monitor for new live streams. YT-DLP already has the --wait-for-video command, which works in the container when invoked from the console. I think this should be extended into to the gui so one can add channels to monitor for new livestreams by metube. Using this command one could also configure the timer that triggers checks as the command is as follows "yt-dlp --wait-for-video 120-180 https://somestreamerurl.here" where in the 120-180 are the min and max time in second to wait before retry, the max value is optional.