style: format widgetWindows.js with Prettier

Author: vanshika2720

js/widgets/widgetWindows.js

@@ -64,10 +64,10 @@ class WidgetWindow {
 
         this.sendToCenter = this.sendToCenter.bind(this);
 
-        this.onclose = () => { };
-        this.onmaximize = () => { };
-        this.onrollup = () => { };
-        this.onunroll = () => { };
+        this.onclose = () => {};
+        this.onmaximize = () => {};
+        this.onrollup = () => {};
+        this.onunroll = () => {};
     }
 
     /**