* snap: Remove various unneeeded plugs
Remove various permissions that the snap required and that are not
actually used. In particular now all the file and settings access is handled
by XDG portals, so there's no need to grant direct file access.
Also this is not a media app or network management software, so no
need to add screen inhibitors or network observation.
* snap: Do not add libnss3
That's already provided by GNOME so no need to duplicate it.
* Update snapcraft.yaml
Put back password-manager-service, home for now
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Co-authored-by: Ben Gotow <bengotow@gmail.com>
This is the preferred way to build snaps now, it allows using desktop
extensions that includes xdg-portals and better integration, reducing
the snap size.
Build this using travis snaps native implementation.
