📦 Update package.json version update material UI

Frontend/package.json

@@ -3,8 +3,8 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
-    "@material-ui/core": "^4.0.0-beta.2",
-    "@material-ui/icons": "^3.0.2",
+    "@material-ui/core": "^4.0.2",
+    "@material-ui/icons": "^4.0.1",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
     "react-router-dom": "^5.0.0",