fix issue where spawning pen in hud was frame behind causing issues.

src/components/in-world-hud.js

@@ -50,7 +50,7 @@ AFRAME.registerComponent("in-world-hud", {
 
     this.mic.addEventListener("click", this.onMicClick);
     this.freeze.addEventListener("click", this.onFreezeClick);
-    this.pen.addEventListener("click", this.onPenClick);
+    this.pen.addEventListener("mousedown", this.onPenClick);
   },
 
   pause() {
@@ -59,6 +59,6 @@ AFRAME.registerComponent("in-world-hud", {
 
     this.mic.removeEventListener("click", this.onMicClick);
     this.freeze.removeEventListener("click", this.onFreezeClick);
-    this.pen.removeEventListener("click", this.onPenClick);
+    this.pen.removeEventListener("mousedown", this.onPenClick);
   }
 });

src/utils/action-event-handler.js

@@ -68,6 +68,8 @@ export default class ActionEventHandler {
     let scrollX = e.detail.axis[0] * SCROLL_MODIFIER;
     scrollX = Math.abs(scrollX) > SCROLL_THRESHOLD ? scrollX : 0;
 
+    this.isCursorInteracting = this.cursor.isInteracting();
+
     if (
       Math.abs(scrollY) > 0 &&
       (this.lastVerticalScrollTime === 0 || this.lastVerticalScrollTime + VERTICAL_SCROLL_TIMEOUT < Date.now())