chore(package): update fs-extra to version 8.0.1

Closes #369

Author: greenkeeper[bot]

package.json

@@ -71,7 +71,7 @@
     "cspell": "3.2.8",
     "electron-rebuild": "1.7.3",
     "electron-reload": "1.3.0",
-    "fs-extra": "7.0.1",
+    "fs-extra": "8.0.1",
     "glob": "7.1.2",
     "jasmine-core": "3.3.0",
     "jasmine-spec-reporter": "4.2.0",