Update react-dom from 16.2.0 to 16.3.0

Author: dependencies-bot

package.json

@@ -69,7 +69,7 @@
     "node-sass": "^4.7.2",
     "postcss-loader": "^2.0.10",
     "react": "^16.2.0",
-    "react-dom": "^16.2.0",
+    "react-dom": "^16.3.0",
     "resolve-url-loader": "^2.2.1",
     "sass-lint": "^1.12.1",
     "sass-loader": "^6.0.6",