fix(shs-5996-shs-5997): move external link styles for CKEditor UI to …

…the admin theme CSS

docroot/themes/humsci/su_humsci_gin_admin/dist/su_humsci_gin_admin.css

@@ -219,11 +219,11 @@ body.gin--edit-form .views-exposed-form .select-preact button svg {
 }
 
 /* Match styles of external link's icon in the WYSIWYG style's dropdown preview with the original design */
+/* Resize the icon, using px instead of rem, because when using rem the icon looks way bigger */
 .ck-style-grid__button .ck-content a.hs-external-link::after {
   width: 20px;
   height: 11px;
   margin-bottom: 0;
-  /* Use px instead of rem because when using rem the icon looks way bigger */
   background-size: 11px;
   padding-left: 0;
 }