Add node-sass and react-scroll dependencies

Author: Sean Prashad

web/package.json

@@ -11,9 +11,11 @@
     "enzyme": "^3.11.0",
     "enzyme-adapter-react-16": "^1.15.2",
     "gh-pages": "^2.2.0",
+    "node-sass": "^4.13.0",
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
     "react-scripts": "3.3.0",
+    "react-scroll": "^1.7.15",
     "react-test-renderer": "^16.12.0",
     "reactstrap": "^8.2.0"
   },