API key config items are implemented UI-side
Added ability to generate API keys through the settings
Switched getmp3s and getmp4s api calls to be GET requests rather than POST
Removed unused code from settings dialog
Created arg modifier dialog to assist in editing youtube-dl args
- This arg dialog contains all the available args and their description
- Includes a convenient search bar and categorized list of args to help you find the one you're looking for, or just explore what's available.
Arg modifier is available for both global args (in settings) and local args (in the advanced mode)
