fix: use Atum 'top' position for full-width cpanel module [skip ci]

Atum template has a 'top' position that renders full-width above the
component output inside the content section. Removed the column-span
CSS hack since top position is naturally full-width.

Authored-by: Moko Consulting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/script.php

@@ -473,7 +473,7 @@ class Pkg_MokowaasInstallerScript
 				'note'      => '',
 				'content'   => '',
 				'ordering'  => 0,
-				'position'  => 'icon',
+				'position'  => 'top',
 				'checked_out' => null,
 				'checked_out_time' => null,
 				'publish_up'   => null,