Fix AR Placement

[HexaField]

Summary

🤖 Generated by Copilot at 73a1db0

This pull request improves the performance, consistency, and user experience of the engine's XR mode. It fixes bugs and optimizes the code in ClientInputSystem.ts, TransformComponent.ts, XRAnchorSystem.ts, XRCameraSystem.ts, and XRState.ts. It also removes a line that was overriding the user's camera mode preference in AvatarAnimationSystem.ts.

References

closes #insert number here

Explanation

🤖 Generated by Copilot at 73a1db0

• Fixed bugs and improved performance of the XR camera system by using a constant vector for the scale component of the camera transforms (link, link, link) in XRCameraSystem.ts.

🤖 Generated by Copilot at 73a1db0

Sing, O Muse, of the valiant pull request
That fixed and optimized the XR mode
And made the scene and camera more adept
To render the immersive virtual abode.

QA Steps

List any additional steps required to QA the changes of this PR, as well as any supplemental images or videos.

Checklist

• If this PR is still a WIP, convert to a draft
• When this PR is ready, mark it as "Ready for review"
• ensure all checks pass
• Changes have been manually QA'd
• Changes reviewed by at least 2 approved reviewers