feat(stats): show gross earned leave by rule (#67)

src/app/services/translation-service.ts

@@ -134,6 +134,9 @@ export interface AppTranslations {
 			averageWorkSequence: string;
 			averageTimeOffPeriod: string;
 			longestTimeOffPeriod: string;
+			earnedLeave: string;
+			earnedLeaveByRule: string;
+			leaveDaysUnit: string;
 			workingDays: string;
 			calendarDays: string;
 			partialPlan: string;