Feat: Add german translations (#5866)

### What problem does this PR solve?

Add Support for german language 

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/user-setting/setting-locale/index.tsx

@@ -13,6 +13,7 @@ function UserSettingLocale() {
         'zh-TRADITIONAL',
         'ja',
         'pt-br',
+        'German',
       ]}
     />
   );