Retract

Added toasts, changed usage of pip and changed it into python -m pip for a more reliable use, and added a small animation while it installs yt-dlp using python so that it doesn’t look like it is just frozen. Took me a while to find out why the UI wasn’t updating with click and found out I needed to use yield to push the updates to the button and to send out the toasts after it downloads.

Added detection yt-dlp detection using subprocess and incase it isn’t on path or the assets directory to alert the user, tell them to install it, or return back to the home page. Also allows the user to download it by pressing a button using python’s pip to install the package version of yt-dlp.