add a removeToast function

src/app/services/notification.service.ts

@@ -24,13 +24,19 @@ export class NotificationService {
   /**
    * By default, the error is displayed until clicked on.
    */
-  public showError(title: string, message = '', timeOut = 0): ActiveToast<unknown> {
+  public showError(title: string, message = '', timeOut = 0, options?: any): ActiveToast<unknown> {
     return this.toastr.error(message, title, {
       timeOut: timeOut,
       disableTimeOut: timeOut === 0,
+      enableHtml: true,
+      ...options,
     });
   }
 
+  public removeToast(toastId: number): void {
+    this.toastr.remove(toastId);
+  }
+
   public showInfo(title: string, message = '', timeOut = 10000): ActiveToast<unknown> {
     return this.toastr.info(message, title, {
       timeOut: timeOut,