Updated the default width of inserted images to 500px (#1347)

Author: AbhayVAshokan

src/components/Editor/CustomExtensions/Image/ExtensionConfig.js

@@ -62,7 +62,7 @@ export default Node.create({
       },
 
       figwidth: {
-        default: 400,
+        default: 500,
         parseHTML: element =>
           element.querySelector("img")?.getAttribute("figwidth"),
       },