fix NS_BINDING_ABORTED nextauth sign in

components/sidebar.tsx

@@ -164,7 +164,7 @@ function UserSection({ session }) {
 function SignInButton() {
   return (
     <div className="items-center py-2" onClick={() => signIn()}>
-      <a href="/api/auth/signin">Впишете се</a>
+      <button>Впишете се</button>
     </div>
   );
 }