[No Jira Issue] modify the onClickBack function

1. PlayerPanel.jsx

- commented out: ev.preventDefault
- uncommented: ev.stopPropagation

com.twin.app.shoptime/src/views/PlayerPanel/PlayerPanel.jsx

@@ -837,7 +837,7 @@ const PlayerPanel = ({
       ) {
         setSideContentsVisible(false);
         ev?.stopPropagation();
-        if (ev && typeof ev.preventDefault === "function") ev.preventDefault();
+        // ev?.preventDefault();
         return;
       }
 
@@ -861,16 +861,16 @@ const PlayerPanel = ({
             })
           );
         }
-        // ev?.stopPropagation();
-        if (ev && typeof ev.preventDefault === "function") ev.preventDefault();
+        ev?.stopPropagation();
+        // ev?.preventDefault();
         return;
       }
 
       if (!panelInfo.modal) {
         dispatch(PanelActions.popPanel());
         dispatch(changeAppStatus({ cursorVisible: false }));
-        // ev?.stopPropagation();
-        if (ev && typeof ev.preventDefault === "function") ev.preventDefault();
+        ev?.stopPropagation();
+        // ev?.preventDefault();
         return;
       }
     },