Offer the user to refresh after enabling
Offer the user to refresh after enabling

Some users are enabling updates-testing and then wondering why there are no more
firmware updates available. It appears after a 'fwupdmgr refresh' but that's
not obvious to end users who don't know about how this stuff is built.

hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd