Add Playwright E2E testing setup

- Added Playwright configuration for automated and visual E2E tests
- Updated Next.js configuration to accept localhost:3003 for testing
- Included Playwright as a dev dependency

💘 Generated with Crush
Co-Authored-By: Crush <crush@charm.land>

playwright.config.ts

@@ -0,0 +1,29 @@
+import { PlaywrightTestConfig } from '@playwright/test';
+
+const config: PlaywrightTestConfig = {
+  testDir: './tests',
+  timeout: 30000,
+  retries: 1,
+  use: {
+    headless: true,
+    viewport: { width: 1280, height: 720 },
+    ignoreHTTPSErrors: true,
+    video: 'on-first-retry',
+  },
+  projects: [
+    {
+      name: 'chromium',
+      use: { browserName: 'chromium' },
+    },
+    {
+      name: 'firefox',
+      use: { browserName: 'firefox' },
+    },
+    {
+      name: 'webkit',
+      use: { browserName: 'webkit' },
+    },
+  ],
+};
+
+export default config;