Adding correct classNames

plugins/coral-plugin-offtopic/client/components/OffTopicFilter.js

@@ -4,7 +4,7 @@ import styles from './styles.css';
 export default class OffTopicFilter extends React.Component {
 
   tag = 'OFF_TOPIC';
-  className = 'offTopicComment';
+  className = 'coral-plugin-off-topic-comment';
   cn = {[this.className] : {tags: [this.tag]}};
 
   handleChange = (e) => {

plugins/coral-plugin-offtopic/client/components/styles.css

@@ -22,6 +22,6 @@
   padding: 5px 0;
 }
 
-:global(.offTopicComment) {
+:global(.coral-plugin-off-topic-comment) {
   display: none;
 }