Change the issue template to issue form

[eitsupi]

Reference: https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/configuring-issue-templates-for-your-repository#creating-issue-forms

This would be easier for the user to enter checkboxes, etc.

As a first step, I have ported the current Markdown template almost as is.
Note that you can, for example, create a new input field for system information or set the quarto version as a required field to be written.

[jjallaire]

Should this use bug_report.yml rather than but_report.yml ?

[eitsupi]

Should this use bug_report.yml rather than but_report.yml ?

Sorry, it's a typo.

[jjallaire]

Thanks for this, looks great!