feat: create get_all_by_user

src/expon/presentation/infrastructure/persistence/jpa/repositories/presentation_repository.py

@@ -43,3 +43,7 @@ class PresentationRepository:
         if db_model:
             self.db.delete(db_model)
             self.db.commit()
+
+    def get_all_by_user(self, user_id: int) -> List[Presentation]:
+        return self.get_by_user_id(user_id)
+