Administration: Hide skip to toolbar link on small viewports.

Since r55326, the admin sidebar autocloses on small viewports when focus exits the sidebar. Because of this, there is no case where the Skip to Toolbar link will have any function on small viewports.

Props sabernhardt, abcd95, alh0319, mleray, joedolson.
Fixes #63286.
Built from https://develop.svn.wordpress.org/trunk@60286


git-svn-id: http://core.svn.wordpress.org/trunk@59622 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/common-rtl.css

@@ -3913,6 +3913,10 @@ img {
 		top: 7px;
 	}
 
+	.screen-reader-shortcut[href="#wp-toolbar"] {
+		display: none;
+	}
+
 	body {
 		min-width: 240px;
 		overflow-x: hidden;

wp-admin/css/common.css

@@ -3912,6 +3912,10 @@ img {
 		top: 7px;
 	}
 
+	.screen-reader-shortcut[href="#wp-toolbar"] {
+		display: none;
+	}
+
 	body {
 		min-width: 240px;
 		overflow-x: hidden;

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.9-alpha-60285';
+$wp_version = '6.9-alpha-60286';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.