For code review it would be nice to create annotations instead of blocking thread
## Context
As a developpeur I like to annotate my own merge request with comments on specific code lines (instead of writting comments into the code) to give details about theses lines.
## Why
It
- helps the reviewer
- helps reading the merge request few years later.
But currently when I comment the merge request code it creates a thread.
Finally, I have to resolve each of my thread to be able to merge.
## Possible solution
It would be nice to create code comment as real comment instead of threads.
It could take the form of a second button like in the main merge request overview window.

Versus:

issue