Translated using Weblate (Japanese)

Currently translated at 3.9% (13 of 329 strings)
Fix a conflict in the Japanese l10n files
Fix a docblock typo

Fixes #189
Fix invalid CSS

Fixes #187
Ranks screen: Display errors for specific fields

Fixes #190
Ranks screen: disable the save button while saving

It will automatically be re-enabled once the user makes some changes.

Fixes #191