Fix some more Javascript linting issues and discrepancies with upstream (#2209)

* Fix typo in flavours/glitch/features/video/index.js

* Fix various linting issues and discrepancies with upstream

app/javascript/flavours/glitch/containers/domain_container.jsx

@@ -10,8 +10,7 @@ const messages = defineMessages({
 });
 
 const makeMapStateToProps = () => {
-  const mapStateToProps = (state, { }) => ({
-  });
+  const mapStateToProps = () => ({});
 
   return mapStateToProps;
 };