Ctrl+Enter immediately adds MR comment
### Summary
When writing merge request comments the new batch review feature nicely allows it to group comments.
This workflow sadly does not work with the keyboard shortcut `Ctrl+Enter`. Instead of creating a new review or adding to an existing one the comments is always instantly submitted.
This is especially unexpected as the `Add to review` button is marked as primary with the green background.
### Steps to reproduce
- Open a merge request diff view
- Write a comment
- Press `Ctrl+Enter`
Optionally write a second comment. While the labels change the behavior is the same.
### What is the current *bug* behavior?
The comment is always instantly submitted as if the secondary `Add comment now` button was pressed.
### What is the expected *correct* behavior?
The shortcut always triggers the primary button. Either `Add to review` or `Start review`
issue