Command Palette: Add network admin check

Author: t-hamano

src/wp-includes/script-loader.php

@@ -3430,7 +3430,9 @@ function wp_enqueue_classic_theme_styles() {
 function wp_enqueue_command_palette_assets() {
 	global $menu, $submenu;
 
-	$command_palette_settings = array();
+	$command_palette_settings = array(
+		'is_network_admin' => is_network_admin(),
+	);
 
 	if ( $menu ) {
 		$menu_commands = array();