Update git submodules
- Update extensions/InputBox from branch 'REL1_39' to 0a5100e7c0651ca892bea810b6a13c1c5be8dc0f
- Localisation updates from https://translatewiki.net.
Change-Id: I3eb93835b0ec09af6a77d8f61539430146e0d2f5
- Localisation updates from https://translatewiki.net.