Add object-shorthand rule

Author: LinusU

eslintrc.json

@@ -169,6 +169,7 @@
     "object-curly-newline": ["error", { "multiline": true, "consistent": true }],
     "object-curly-spacing": ["error", "always"],
     "object-property-newline": ["error", { "allowMultiplePropertiesPerLine": true }],
+    "object-shorthand": ["error", "properties"],
     "one-var": ["error", { "initialized": "never" }],
     "operator-linebreak": ["error", "after", { "overrides": { "?": "before", ":": "before", "|>": "before" } }],
     "padded-blocks": ["error", { "blocks": "never", "switches": "never", "classes": "never" }],