fix: keep removeFilm expression body with 204 response

Agent-Logs-Url: https://github.com/devitq/movienight-backend/sessions/42b7a686-07a7-41f5-baf7-737b968e12cf

Co-authored-by: devitq <118541411+devitq@users.noreply.github.com>

src/main/kotlin/com/project/movienight/adapters/web/FilmLibraryController.kt

@@ -92,14 +92,12 @@ class FilmLibraryController(
     fun removeFilm(
         @PathVariable userId: UUID,
         @PathVariable filmId: UUID,
-    ) {
-        removeFilmFromLibraryUseCase.removeFilm(
+    ) = removeFilmFromLibraryUseCase.removeFilm(
         RemoveFilmFromLibraryCommand(
             userId = userId,
             filmId = filmId,
         ),
     )
-    }
 
     @GetMapping("/available-films")
     fun getAvailableFilms(