Add a "Feature Description" section to the issue template's feat.yml

[kurosakishigure]

What is the documentation issue?

The current feature request template lacks a specific description of the feature.

Is there any context that might help us understand?

Adding this section would help us better understand the details of the feature.

[github-actions]

This closed issue has been automatically locked because it had no new activity for 2 weeks. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.