Docs: Convert 'Block Editor' to lowercase.

Props garrett-eclipse.
Fixes #45634.
Built from https://develop.svn.wordpress.org/trunk@46386


git-svn-id: http://core.svn.wordpress.org/trunk@46185 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/edit-form-blocks.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * The Block Editor page.
+ * The block editor page.
  *
  * @since 5.0.0
  *

wp-includes/class-wp-editor.php

@@ -1294,7 +1294,7 @@ final class _WP_Editors {
 				'Link options'                         => __( 'Link options' ), // Tooltip for the 'link options' button in the inline link dialog
 				'Visual'                               => _x( 'Visual', 'Name for the Visual editor tab' ), // Editor switch tab label
 				'Text'                                 => _x( 'Text', 'Name for the Text editor tab (formerly HTML)' ), // Editor switch tab label
-				'Add Media'                            => array( __( 'Add Media' ), 'accessM' ), // Tooltip for the 'Add Media' button in the Block Editor Classic block
+				'Add Media'                            => array( __( 'Add Media' ), 'accessM' ), // Tooltip for the 'Add Media' button in the block editor Classic block
 
 				// Shortcuts help modal
 				'Keyboard Shortcuts'                   => array( __( 'Keyboard Shortcuts' ), 'accessH' ),

wp-includes/js/tinymce/plugins/wordpress/plugin.js

@@ -638,12 +638,12 @@ tinymce.PluginManager.add( 'wordpress', function( editor ) {
 			}
 		} );
 
-		// Alt+Shift+Z removes a block in the Block Editor, don't add it to the Classic Block.
+		// Alt+Shift+Z removes a block in the block editor, don't add it to the Classic block.
 		if ( ! editor.settings.classic_block_editor ) {
 			editor.addShortcut( 'access+z', '', 'WP_Adv' );
 		}
 
-		// Workaround for not triggering the global help modal in the Block Editor by the Classic Block shortcut.
+		// Workaround for not triggering the global help modal in the block editor by the Classic block shortcut.
 		editor.on( 'keydown', function( event ) {
 			var match;
 

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-beta2-46385';
+$wp_version = '5.3-beta2-46386';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.