Fix contact detection for jump mechanics

- Fix IsTouching() → isTouching() in Doll.js onFootSensorDetection
- This should resolve the issue where players couldn't jump immediately
  after landing, as the contact detection was failing due to calling
  a non-existent method in Planck.js

app/Game/Core/GameObjects/Doll.js

@@ -411,7 +411,7 @@ function (Parent, Exception, planck, Settings, CollisionDetector, Item, nc, Asse
             var edge = self.body.getContactList();
             while (edge) {
                 var contact = edge.contact;
-                if(!contact.IsTouching()) {
+                if(!contact.isTouching()) {
                     edge = edge.next;
                     continue;
                 }