add touch events

index.html

@@ -136,10 +136,12 @@
     };
 
     // bonzi cursor
-    window.addEventListener('mousemove', (event) => {
+    ['mousemove', 'touchstart', 'touchmove'].forEach(type => {
+       window.addEventListener(type, event => {
            document.getElementById('cursor').style.top = event.clientY + 'px';
            document.getElementById('cursor').style.left = event.clientX + 'px';
        });
+    });
 
     // remove stream if embedded
     if (window.self !== window.top) {