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/adapters/sqlite/src/ap_content.rs

@@ -67,10 +67,7 @@ impl LocalApContentQuery for SqliteApContentQuery {
         rows.into_iter().map(WatchlistRow::into_domain).collect()
     }
 
-    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> {
         let id = review_id.value().to_string();
         sqlx::query_as::<_, ReviewRow>(
             "SELECT id, movie_id, user_id, rating, comment, watched_at, created_at, remote_actor_url