update z-index showcase

ts_web/elements/dees-toast.ts

@@ -106,6 +106,11 @@ export class DeesToast extends DeesElement {
     return toast;
   }
 
+  // Alias for consistency with DeesModal
+  public static async createAndShow(options: IToastOptions | string) {
+    return this.show(options);
+  }
+
   // Convenience methods
   public static info(message: string, duration?: number) {
     return this.show({ message, type: 'info', duration });