Nobara Project 39

We've removed the codec installer and instead integrated it as part of the 'Update System' app. The goal here was to streamline package updates into one place and give less popups for the user on clean installation. Now, when a user performs a new installation they will receive one pop-up informing them they should update the system. Upon updating they will then be asked a few questions, including updating media codec packages, updating Flatpaks, and updating snaps. There is still a popup for NVIDIA drivers if the user decides to change GPUs and/or did not install using an NVIDIA ISO image and has an NVIDIA GPU. The layout picker has been removed as it was based around GNOME, and we are no longer focusing on GNOME as our primary desktop.