Refactor code for improved readability and consistency

- Simplified error handling in `PostgresApContentQuery` and `SqliteApContentQuery` by aligning the formatting of `try_get` calls.
- Removed unnecessary line breaks and improved formatting in various repository implementations for better readability.
- Consolidated imports in `lib.rs` and `factory.rs` to maintain a cleaner structure.
- Enhanced consistency in async function signatures across multiple files.
- Updated test helpers and use cases to streamline code and improve clarity.
- Refactored `InMemory` repositories to enhance readability by aligning method implementations.

crates/domain/src/ports.rs

@@ -391,10 +391,7 @@ pub trait LocalApContentQuery: Send + Sync {
         user_id: &UserId,
     ) -> Result<Vec<WatchlistWithMovie>, DomainError>;
 
-    async fn get_review_by_id(
-        &self,
-        review_id: &ReviewId,
-    ) -> Result<Option<Review>, DomainError>;
+    async fn get_review_by_id(&self, review_id: &ReviewId) -> Result<Option<Review>, DomainError>;
 
     async fn get_movie_by_id(&self, movie_id: &MovieId) -> Result<Option<Movie>, DomainError>;