setup of vitest (#3238)

Signed-off-by: NishantSinghhhhh <nishantsingh_230137@aitpune.edu.in>

vitest.setup.ts

@@ -1 +1,28 @@
 import '@testing-library/jest-dom';
+import { cleanup } from '@testing-library/react';
+
+// Basic cleanup after each test
+afterEach(() => {
+  cleanup();
+});
+
+// Simple console error handler for React 18 warnings
+const originalError = console.error;
+beforeAll(() => {
+  console.error = (...args: unknown[]) => {
+    const firstArg = args[0];
+    if (
+      typeof firstArg === 'string' &&
+      /Warning: ReactDOM.render is no longer supported in React 18./.test(
+        firstArg,
+      )
+    ) {
+      return;
+    }
+    originalError.call(console, ...args);
+  };
+});
+
+afterAll(() => {
+  console.error = originalError;
+});