Update for flatpak 1.2

[allanday]

The recently released flatpak 1.0 has some features that we should have in the docs. Some noteworthy items from the release notes:

Permissions:

• Up-front verification of permissions
• A new application permission can be used to grant access to Bluetooth devices.
• New fallback-x11 permission

CLI things:

• uninstall --unused automatically removes unused runtimes and extensions
• flatpak remove is now an alias for flatpak uninstall.

Other:

• permission-* - allows interaction with the portals permissions store (can probably be added to the page on debugging)
• Marking apps as end-of-life
• Apps can now export D-Bus services for all the D-Bus names they are privileged to own

Anything else?

[somarlyonks]

flatpak-spawn is worth mentioning as far as I'm concerned.

[matthiasclasen]

Repurposing this issue to see what we want to update for the upcoming flatpak 1.2 release.

[matthiasclasen]

New things in 1.2 that are worth mentioning:

• New commands
  • flatpak ps
  • flatpak kill
  • flatpak history
• New install/update/uninstall UX
  • shows download sizes
  • shows permissions
  • shows eol warnings
• flatpak install and uninstall will search for matching refs
• Support for --columns for all tables
• Logging to the journal (used for history)
• FlatpakInstance library (used for ps, kill)
• Reduced PolicyKit dialogs
• Text-mode PolicyKit support
• Improved support for custom installations
  • flatpak update handles them
• Custom prompt in sandbox shells
• Better testsuite, including coverage reporting