Modified the code structure for the auth UI

twistter-frontend/package.json

@@ -3,10 +3,11 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
+    "@material-ui/core": "^4.4.3",
     "react": "^16.9.0",
     "react-dom": "^16.9.0",
     "react-router-dom": "^5.0.1",
-    "react-scripts": "0.9.5"
+    "react-scripts": "^3.1.2"
   },
   "devDependencies": {},
   "scripts": {
@@ -14,5 +15,17 @@
     "build": "react-scripts build",
     "test": "react-scripts test --env=jsdom",
     "eject": "react-scripts eject"
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
   }
 }