fix: merge default notification obj with toast content when set

Signed-off-by: Akshat Patel <[email protected]>

Author: Akshat55

src/notification/toast.component.ts

@@ -5,6 +5,7 @@ import {
 	HostBinding
 } from "@angular/core";
 
+import { of } from "rxjs";
 import { ToastContent } from "./notification-content.interface";
 import { NotificationDisplayService } from "./notification-display.service";
 import { I18n } from "carbon-components-angular/i18n";
@@ -49,7 +50,17 @@ export class Toast extends BaseNotification implements OnInit {
 	 *
 	 * `type` can be one of `"error"`, `"info"`, `"info-square"`, `"warning"`, `"warning-alt"`, or `"success"`
 	 */
-	@Input() notificationObj: ToastContent;
+	@Input() set notificationObj(obj: ToastContent) {
+		if (obj.closeLabel) {
+			obj.closeLabel = of(obj.closeLabel);
+		}
+		this._notificationObj = Object.assign({}, this.defaultNotificationObj, obj);
+	}
+
+	get notificationObj(): ToastContent {
+		return this._notificationObj as ToastContent;
+	}
+
 
 	@HostBinding("attr.id") toastID = `toast-${Toast.toastCount++}`;
 	@HostBinding("class.cds--toast-notification") toastClass = true;