Submit pending review comments when using "approve"

Proposal

When a reviewer approves a merge request submit all draft comments along with the approval

Scenario

When using the quick action /approve or clicking on the "Approve" button in the approval widget, pending comments are not submitted along with that action. This results in pending comments of a review to be left in a draft state and therefore no one else can see those comments.

Approve comment with pending	After approving

Workaround

The workaround for this is to use the review panel to submit an approval or the quick action /submit_review approve

Solution

1. Alias the quick action /approve to /submit_review approve
2. When clicking "Approve" button, submit pending comments along with that action.