Downgrading react dependency

Author: OrKarstoft

package.json

@@ -28,7 +28,7 @@
     "@backstage/plugin-catalog-react": "^0.6.3",
     "@backstage/theme": "^0.2.11",
     "@material-ui/core": "^4.11.0",
-    "react": "^17.0.2",
+    "react": "^16.14.0",
     "react-d3-speedometer": "^1.0.1",
     "react-data-table-component": "^6.11.7",
     "react-dom": "^17.0.2",