fix: remove hardcoded localhost header in magic link

Author: DaniAkash

apps/agent/entrypoints/app/login/LoginPage.tsx

@@ -48,11 +48,6 @@ export const LoginPage: FC = () => {
       const result = await signIn.magicLink({
         email: email.trim(),
         callbackURL: '/home',
-        fetchOptions: {
-          headers: {
-            origin: 'localhost',
-          },
-        },
       })
 
       if (result.error) {