Resolve "Die Statistiken sollten auch in ElasticSearch hinterlegt werden."

Related to #384 (closed)

src/main/java/at/ac/uibk/gitsearch/repository/jpa/AuthorityRepository.java

@@ -23,6 +23,7 @@ public interface AuthorityRepository extends JpaRepository<Authority, String> {
     @Query("SELECT DISTINCT u.authorities  FROM User u ")
     List<Authority> getUsedAuthorities();
 
+    @Override
     List<Authority> findAll();
 
     @Query("SELECT u FROM User u JOIN u.authorities auth WHERE auth.name = :authority")