Cursor component: call addWebXREventListeners also when rayOrigin is entity

[vincentfretin]

Description:

When I tried to update https://aframe-xr-starterkit.glitch.me to use master, the buttons on the wrist were not clickable anymore.

  <script src="https://cdn.jsdelivr.net/gh/aframevr/aframe@4d97225a04cfdc9ab3e44f84687f70d6816a366b/dist/aframe-master.min.js"></script><!-- Dec 31, 2024 not working -->
  <!--<script src="https://cdn.jsdelivr.net/gh/aframevr/aframe@86d847fa80dcaa1c7306a93890000d5bb3183416/dist/aframe-master.min.js"></script>--><!-- Nov 15, 2024 not working, include https://github.com/aframevr/aframe/commit/655ab162d43f3d67327d4da69c3625aef324abb0 -->
  <!--<script src="https://cdn.jsdelivr.net/gh/aframevr/aframe@8e52e89e813b440ee52e0a78aaddde33f98657e0/dist/aframe-master.min.js"></script>--><!-- Nov 15, 2024 working, don't include https://github.com/aframevr/aframe/commit/655ab162d43f3d67327d4da69c3625aef324abb0 -->

The culpurit was commit 655ab16 that removed the webxr listeners for cursor with rayOrigin: entity (the default).

Changes proposed:

• Modify the check to use rayOrigin !== mouse, that what it was really before the commit

[vincentfretin]

After discussion in #5623 I also changed the conditions in update.

[dmarcos]

This should probably be explicit. If in the future we add an option to rayOrigin this might be no longer correct.

var rayOrigin = this.data.rayOrigin;
if (rayOrigin === 'entity' || rayOrigin === 'xrselect') {
  this.addWebXREventListeners();
}

[vincentfretin]

Done. I also added additional comments for the next person that reads this component code in the future.

[dmarcos]

Thanks!