updated translation resources
CC-5678: Scheduler: Show's contents won't follow show's scheduled time change

Fixed by storing original cc_show_day object by value
Merge branch '2.5.x' of https://github.com/sourcefabric/Airtime into 2.5.x
CC-5677: Library -> Scheduled column gets updated on incorrect file
Merge branch '2.5.x' of github.com:sourcefabric/Airtime into 2.5.x
updated translation resources
Merge branch '2.5.x' of https://github.com/sourcefabric/Airtime