Exam generation rework, batch user tables, fastapi endpoint switch

package.json

@@ -12,6 +12,7 @@
   "dependencies": {
     "@beam-australia/react-env": "^3.1.1",
     "@dnd-kit/core": "^6.1.0",
+    "@dnd-kit/modifiers": "^7.0.0",
     "@dnd-kit/sortable": "^8.0.0",
     "@firebase/util": "^1.9.7",
     "@headlessui/react": "^2.1.2",
@@ -49,6 +50,7 @@
     "formidable-serverless": "^1.1.1",
     "framer-motion": "^9.0.2",
     "howler": "^2.2.4",
+    "immer": "^10.1.1",
     "iron-session": "^6.3.1",
     "lodash": "^4.17.21",
     "moment": "^2.29.4",