fix(core): update

ts/smartchok.classes.smartchok.ts

@@ -83,17 +83,16 @@ export class Smartchok {
   /**
    * stop the watcher process if watching
    */
-  public stop() {
-    const closeWatcher = () => {
-      this.watcher.close();
+  public async stop() {
+    const closeWatcher = async () => {
+      await this.watcher.close();
     };
     if (this.status === 'watching') {
       console.log('closing while watching');
-      closeWatcher();
+      await closeWatcher();
     } else if (this.status === 'starting') {
-      this.watchingDeferred.promise.then(() => {
-        closeWatcher();
-      });
+      await this.watchingDeferred.promise;
+      await closeWatcher();
     }
   }
 }