Customize: Fix panel indentation in Firefox.

In Firefox on Windows the menus and widgets panel weren't fully visible due to a miscalculation of the width of a panel, caused by a visible scrollbar.

Props wpfo.
Fixes #34622.
Built from https://develop.svn.wordpress.org/trunk@37984


git-svn-id: http://core.svn.wordpress.org/trunk@37925 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/customize-controls-rtl.css

@@ -277,9 +277,9 @@ h3.customize-section-title {
 .accordion-sub-container.control-panel-content {
 	display: none;
 	position: absolute;
-	right: 300px;
+	right: 100%;
 	top: 0;
-	width: 300px;
+	width: 100%;
 	-webkit-transition: right ease-in-out .18s;
 	transition: right ease-in-out .18s;
 }
@@ -427,8 +427,8 @@ h3.customize-section-title {
 
 .in-sub-panel #customize-info,
 .in-sub-panel #customize-theme-controls > ul > .accordion-section {
-	right: -300px;
-	width: 300px;
+	right: -100%;
+	width: 100%;
 }
 
 .in-sub-panel #customize-theme-controls .accordion-section.current-panel {

wp-admin/css/customize-controls.css

@@ -277,9 +277,9 @@ h3.customize-section-title {
 .accordion-sub-container.control-panel-content {
 	display: none;
 	position: absolute;
-	left: 300px;
+	left: 100%;
 	top: 0;
-	width: 300px;
+	width: 100%;
 	-webkit-transition: left ease-in-out .18s;
 	transition: left ease-in-out .18s;
 }
@@ -427,8 +427,8 @@ h3.customize-section-title {
 
 .in-sub-panel #customize-info,
 .in-sub-panel #customize-theme-controls > ul > .accordion-section {
-	left: -300px;
-	width: 300px;
+	left: -100%;
+	width: 100%;
 }
 
 .in-sub-panel #customize-theme-controls .accordion-section.current-panel {

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-beta1-37983';
+$wp_version = '4.6-beta1-37984';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.