fix: add missing test:integration script to frontend package.json

Author: tanzilahmed0

frontend/package.json

@@ -9,7 +9,8 @@
     "lint": "next lint",
     "type-check": "tsc --noEmit",
     "test": "vitest",
-    "test:e2e": "playwright test"
+    "test:e2e": "playwright test",
+    "test:integration": "playwright test"
   },
   "dependencies": {
     "@heroicons/react": "^2.2.0",