Use for-of instead of forEach (#3583)

Co-authored-by: syuilo <syuilotan@yahoo.co.jp>
Co-authored-by: Acid Chicken (硫酸鶏) <root@acid-chicken.com>

src/server/api/endpoints/notes/polls/vote.ts

@@ -102,12 +102,12 @@ export default define(meta, (ps, user) => new Promise(async (res, rej) => {
 			}
 		})
 		.then(watchers => {
-			watchers.forEach(watcher => {
+			for (const watcher of watchers) {
 				notify(watcher.userId, user._id, 'poll_vote', {
 					noteId: note._id,
 					choice: ps.choice
 				});
-			});
+			}
 		});
 
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