Merge pull request #3577 from LLK/greenkeeper/scratch-gui-0.1.0-prerelease.20191204143415

Update scratch-gui to the latest version 🚀

package.json

@@ -127,7 +127,7 @@
     "redux-mock-store": "^1.2.3",
     "redux-thunk": "2.0.1",
     "sass-loader": "6.0.6",
-    "scratch-gui": "0.1.0-prerelease.20191120175131",
+    "scratch-gui": "0.1.0-prerelease.20191204143415",
     "scratch-l10n": "latest",
     "selenium-webdriver": "3.6.0",
     "slick-carousel": "1.6.0",