Added leave of vehicle when closing veh buy dialog, disabled N key for shop vehicles

Client/Business/cardealer.js

@@ -43,7 +43,8 @@ mp.events.add('ShopVehicle_OpenMenu', (businessName, price) => {
 
     shopMenu.MenuClose.on(() => {
         mp.gui.chat.show(true);
-    })
+        mp.players.local.taskLeaveVehicle(veh.handle, 0);
+    });
 
     shopMenu.Open();
 });