fix(feedback): await github issue creation

Worker was terminating before the async GitHub API call
could complete. Adding await ensures the issue is created
before the response is returned.

src/app/api/feedback/route.ts

@@ -78,7 +78,7 @@ export async function POST(request: Request) {
     createdAt,
   })
 
-  createGithubIssue(env, db, id, {
+  await createGithubIssue(env, db, id, {
     type,
     message: message.trim(),
     name: name?.trim(),