fix(ui): fix exam and result screen ui

app/providers.tsx

@@ -0,0 +1,15 @@
+"use client";
+
+import { ExamProvider } from "@/context/ExamContext";
+import { TimerProvider } from "@/context/TimerContext";
+import { AuthProvider } from "@/context/AuthContext";
+
+export function Providers({ children }: { children: React.ReactNode }) {
+  return (
+    <TimerProvider>
+      <AuthProvider>
+        <ExamProvider>{children}</ExamProvider>
+      </AuthProvider>
+    </TimerProvider>
+  );
+}