chore(package): update standard to version 12.0.0

Closes #6

Author: greenkeeper[bot]

package.json

@@ -18,6 +18,6 @@
     "electron-webrtc": "^0.3.0",
     "flip-tape": "^4.1.2",
     "signalhub": "^4.9.0",
-    "standard": "^10.0.3"
+    "standard": "^12.0.0"
   }
 }