Revert "try: fix: return null instead of throw error when recursively fetching note"

This reverts commit be295b19a6.

packages/backend/src/core/activitypub/models/ApNoteService.ts

@@ -235,7 +235,7 @@ export class ApNoteService {
 				})
 				.catch(async err => {
 					this.logger.warn(`Error in inReplyTo ${note.inReplyTo} - ${err.statusCode ?? err}`);
-					return null;
+					throw err;
 				})
 			: null;