Update git submodules
- Update BlueSpicePageTemplates from branch 'master' to 5c63660cc339528561af083a5d93493cd500d7ad
- Localisation updates from https://translatewiki.net.
Change-Id: I9aab5fda4a6a22333aa1f79cf513ae0cf600f8e1
- Localisation updates from https://translatewiki.net.