renamed new color annotation file

hever/inc/wpcom-editor-colors.php

@@ -1,2 +1,2 @@
 <?php
-require_once get_template_directory() . '/inc/wpcom-colors-v2.php';
+require_once get_template_directory() . '/inc/wpcom-colors-css-variables.php';

hever/inc/wpcom.php

@@ -6,7 +6,7 @@
  *
  * @package Hever
  */
-require_once get_template_directory() . '/inc/wpcom-colors-v2.php';
+require_once get_template_directory() . '/inc/wpcom-colors-css-variables.php';
 /**
  * Bind JS handlers to instantly live-preview changes.
  */