feat: all fixes for tests

Author: abdegenius

frontend/package-lock.json

@@ -29,6 +29,9 @@
   "devDependencies": {
     "@next/bundle-analyzer": "^15.2.3",
     "@tailwindcss/postcss": "^4.2.2",
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.2",
+    "@testing-library/user-event": "^14.6.1",
     "@types/node": "^22.19.15",
     "@types/react": "^19",
     "autoprefixer": "^10.4.27",