Issue124 (#155)

* added questions (no answers yet) to case study 3, frames 4-6

* food rating game

* modified game completion message

* added categorization game

* commit categorization game without package.json

Author: qingxin-xia

website/package-lock.json

@@ -3,6 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
+    "@phosphor-icons/react": "^2.1.10",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.3.0",
     "@testing-library/user-event": "^14.6.1",