feat(translations): Add German and Japanese translation fields

- Added the "german" and "japanese" fields to the common.ts file

application/src/translations/types/common.ts

@@ -5,6 +5,8 @@ export interface CommonTranslations {
   language: string;
   english: string;
   khmer: string;
+  german: string;
+  japanese: string;
   simplifiedChinese: string;
   goodMorning: string;
   goodAfternoon: string;