fix(package): update react-dnd-html5-backend to version 7.6.2

Closes #1110

Author: greenkeeper[bot]

package.json

@@ -56,7 +56,7 @@
     "query-string": "6.5.0",
     "react": "16.8.6",
     "react-dnd": "7.6.1",
-    "react-dnd-html5-backend": "7.6.0",
+    "react-dnd-html5-backend": "7.6.2",
     "react-dom": "16.8.6",
     "react-helmet": "5.2.1",
     "react-router": "5.0.1",