Jetpack Comments blog comment widget

## Prerequisites

- [ x] I have searched for similar features requests in both open and closed tickets and cannot find a duplicate.
- [ x] The feature is still missing in the latest stable version of Elementor ( Elementor Pro. )

**What problem is your feature request going to solve? Please describe.**
I would like to use Jetpack Comments with my blog single posts template. This would enable a wider log-in capability for comments and better compatibility with Jetpack's comment, log-in, and blog subscription handling. Their comment box has a much friendlier interface than the Wordpress Comments widget that is offered plug and play with Elementor.

**Describe the solution you'd like**
It would be excellent if Elementor could provide a Jetpack Comments widget for the single blog post builder.

**Describe alternatives you've considered**
I had considered inserting shortcode, but Jetpack has not been willing to provide any code.