Bump react-scripts from 3.4.3 to 4.0.0

Bumps [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts) from 3.4.3 to 4.0.0.
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/master/CHANGELOG-3.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/react-scripts@4.0.0/packages/react-scripts)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -15,7 +15,7 @@
     "react-dom": "^16.14.0",
     "react-router": "^5.1.2",
     "react-router-dom": "^5.2.0",
-    "react-scripts": "3.4.3",
+    "react-scripts": "4.0.0",
     "react-textarea-autosize": "^8.2.0",
     "semantic-ui-css": "^2.4.1",
     "semantic-ui-react": "^2.0.0",