added update profile modal, adjusted forms, and fixed account update in backend

src/api/account.ts

@@ -0,0 +1,10 @@
+import { UpdateUserResponse } from '../types';
+import { apiFetch } from './client'
+// import type { User } from '../types'
+
+export function updateAccount(username: string, email: string, password: string) {
+  return apiFetch<UpdateUserResponse>('/account', {
+    method: 'PUT',
+    body: JSON.stringify({ username, email, password }),
+  });
+}