Update git submodules
- Update extensions/InputBox from branch 'REL1_39' to 3c7c189607f75f2a33e0c5195966013f129a645f
- Localisation updates from https://translatewiki.net.
Change-Id: I0395b1ecc63295ed25b2d7f16eb9fe683de098fd
- Localisation updates from https://translatewiki.net.