[Bug]: Billet usage does not support whitespace after/before `{}`

[dcapslock]

My Home Assistant Version

Core: 2026.8.1
Frontend: 2026729.5
UIX: 8.0.1-beta.5

My UIX installation method

HACS

My lovelace configuration method

GUI

What I am doing

Use billet as { my_billet } either directly in a template or an interpolated billet. It is not included so is a template error.

What I expect to happen

Use whitespace in billet like you can for templates.

What happened instead

Template error

Minimal steps to reproduce

...

Include any yaml code here

Error messages from the browser console

By checking each box below I indicate that I ...

• Understand that this is a channel for reporting bugs, not a support forum (https://community.home-assistant.io/).
• Have made sure I am using the latest version of the integration.
• Have searched Home Assistant logs for any relevant UIX errors or warnings.
• Understand that failure to follow the template above may increase the time required to handle my bug-report, or cause it to be closed without further action.

[github-actions]

🎉 This issue has been resolved in version 8.1.0-beta.3 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀