Improve error handling of API (#4345)

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* Update attached_notes.ts

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* Refactor

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* Update call.ts

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* ✌️

* Fix

src/server/api/endpoints/i.ts

@@ -18,13 +18,12 @@ export const meta = {
 	}
 };
 
-export default define(meta, (ps, user, app) => new Promise(async (res, rej) => {
+export default define(meta, async (ps, user, app) => {
 	const isSecure = user != null && app == null;
 
-	// Serialize
-	res(await pack(user, user, {
+	return await pack(user, user, {
 		detail: true,
 		includeHasUnreadNotes: true,
 		includeSecrets: isSecure
-	}));
-}));
+	});
+});