Please confirm

• I have searched existing issues
• This issue is not a duplicate of an existing one
• This is not a request for a plugin

Feature Request Description

I think it would be good if Deckyloader had some kind of GUI access in the Desktop mode of Steam since plugins can have effects and use on Desktop mode of Steam

Further Description

Adding a Desktop mode UI for accessing Deckyplugins from Steam, possibly as an extra tab in the top next to the Store, Library, Community, Profile, and Console tabs. The UI could also allow for accessing and tweaking Deckyloader settings in Desktop mode. As it is modifying Deckyloader settings when in Desktop mode isn't entirely possible and requires booting into big picture mode, which is a bit annoying. It would be great if we had the option right there in Desktop mode.

Obviously since it can potentially cause issues this should be toggleable so the tab can be hidden in case it causes issues or people just don't want it in Desktop mode.