Fix virtual gamepad controls touch region

src/components/virtual-gamepad-controls.css

@@ -16,10 +16,10 @@
 
 :local(.mockJoystickContainer) {
   position: absolute;
-  height: 20vh;
+  height: 0;
   left: 0;
   right: 0;
-  bottom: 0;
+  bottom: 10vh;
   display: flex;
   align-items: center;
   justify-content: space-around;