docs: changed parameter name in javadoc

src/main/java/edu/group5/app/model/user/UserRepository.java

@@ -14,7 +14,7 @@ public class UserRepository extends DBRepository<Integer, User> {
    * Constructs UserRepository using Hashmap,
    * and extends the content from DBRepository.
    * 
-   * @param content the underlying map used to store users,
+   * @param rows the underlying map used to store users,
    *                where the key represents the user ID
    */
   public UserRepository(List<Object[]> rows) {