Video and audio streams now save the stream object in a "descriptors" variable which will give the server the ability to close them when the file needs to be deleted.
- without this, windows systems don't play nice with nodejs function fs.unlinkSync. A weird, but necessary workaround
deleting files is now done asynchronously, and success is now determined by whether they exist afterwards or not
Added backend function to get info for URLs
Modified tomp3 and tomp4 endpoint to support custom quality settings.
Available formats are downloaded when a valid YT url is detected. These formats are then parsed and a best audio format is selected based on the results
After downloading a file with no file manager, file is now deleted. After file deletion, mp3/mp4 reload occurs
Updated view on main component to be more responsive, using bootstrap grid
Updated progress bar UI-wise to be more in line with the rest of the page
frontend now does not get the file status and simply waits for the server to respond with the file
added methods to download audio/video files to simplify downloadHelperMp3/Mp4
