Added @types/express because the backend service does not run without this when compiling with pnpm (#793)

Author: mkrjn99

examples/with-cli-login/package.json

@@ -7,6 +7,7 @@
         "@testing-library/react": "^13.3.0",
         "@testing-library/user-event": "^13.5.0",
         "@types/cors": "^2.8.12",
+        "@types/express": "^4.17.21",
         "@types/jest": "^27.5.2",
         "@types/node": "^16.11.38",
         "@types/react": "^18.0.10",