Twenty Twenty: Add missing comma in `twentytwenty_classic_editor_styl…

…es()`.

This resolves a WPCS error:
{{{
There should be a comma after the last array item in a multi-line array.
}}}

Follow-up to [57311].

See #48630.

git-svn-id: https://develop.svn.wordpress.org/trunk@57313 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-content/themes/twentytwenty/functions.php

@@ -461,7 +461,7 @@ function twentytwenty_classic_editor_styles() {
 
 	$classic_editor_styles = array(
 		'/assets/css/editor-style-classic.css',
-		'/assets/css/font-inter.css'
+		'/assets/css/font-inter.css',
 	);
 
 	add_editor_style( $classic_editor_styles );