Fix linter issues

src/HtmlUtils.tsx

@@ -613,15 +613,20 @@ export function bodyToHtml(content: IContent, highlights: string[], opts: IOpts
         </span>;
 }
 
-/** 
+/**
  * Turn a room topic into html
  * @param topic plain text topic
  * @param htmlTopic optional html topic
  * @param ref React ref to attach to any React components returned
  * @param allowExtendedHtml whether to allow extended HTML tags such as headings and lists
  * @return The HTML-ified node.
  */
-export function topicToHtml(topic: string, htmlTopic?: string, ref?: React.Ref<HTMLSpanElement>, allowExtendedHtml: boolean = false): ReactNode {
+export function topicToHtml(
+    topic: string,
+    htmlTopic?: string,
+    ref?: React.Ref<HTMLSpanElement>,
+    allowExtendedHtml = false,
+): ReactNode {
     if (!SettingsStore.getValue("feature_html_topic")) {
         htmlTopic = null;
     }