Rename areStatesEqual to areObjectsEqual and make it more comprehensive and accurate.

web/react/components/post.jsx

@@ -77,7 +77,7 @@ export default class Post extends React.Component {
         this.forceUpdate();
     }
     shouldComponentUpdate(nextProps) {
-        if (!utils.areStatesEqual(nextProps.post, this.props.post)) {
+        if (!utils.areObjectsEqual(nextProps.post, this.props.post)) {
             return true;
         }