Update git submodules
- Update extensions/InputBox from branch 'REL1_39' to dd8810a4522a3776f09e4a9699dd247ccacd69d2
- Localisation updates from https://translatewiki.net.
Change-Id: I1da056d9e27f092b738ad50a5fc6d02d69243614
- Localisation updates from https://translatewiki.net.