Update git submodules
- Update skins/MinervaNeue from branch 'REL1_39' to 934fcafdd3c27accce25c5de2fc98ac15676cd66
- Localisation updates from https://translatewiki.net.
Change-Id: Ied0a717a4b8a40a849416c7cd0fa53852655f60b
- Localisation updates from https://translatewiki.net.