v2.15.2

Fixes

• Fix XrInputSource crash when grip unavailable by @willeastcott in #8389
• Fix controller models in XR movement example by @willeastcott in #8390
• Fix XrInputSource JSDoc errors and redundant code by @willeastcott in #8391
• Fix duplicate XrViews instance and clean up handler in XrManager by @willeastcott in #8392
• Fix WebXR stereo frustum culling by @willeastcott in #8393
• Add XrMenu script and example for WebXR hand/controller menus by @willeastcott in #8407
• Fix account for camera local offset in XrNavigation teleport by @willeastcott in #8409
• Improve XrControllers script robustness and documentation by @willeastcott in #8410
• Correct vertex format mismatch when decoding Draco meshes by @willeastcott in #8394

Full Changelog: v2.15.1...v2.15.2