chore(formatting): fix formatting

src/DCC.ts

@@ -298,7 +298,7 @@ export class RichContentType extends DCCXMLElement {
   }
 
   getContent(lang?: string): StringWithLangType | undefined {
-    if(!this.content) return null;
+    if (!this.content) return null;
 
     // item with undefined as lang is default
     const def = this.content.find((x) => x._attr == null || x._attr.lang == null);