Migrate to Flatpak pre-install

[danirabbit]

What Happened?

Currently we're using deb packages to pull in flatpak packages so that we have a way to manage removing or changing them

Steps to Reproduce

Check packages for:

• calculator
• camera
• document viewer
• fonts
• file-roller
• maps
• music
• screenshot
• videos
• web

Expected Behavior

We should migrate these to flatpak pre-install: https://docs.flatpak.org/en/latest/flatpak-command-reference.html#flatpak-preinstall

[danirabbit]

I wonder if this should be shipped in default-settings actually