Dismiss a vulnerability with a comment from vulnerability page

Proposal

When dismissing a vulnerability, it's very common to attach a comment to the activity with the stated reason. Currently, when interacting through the web interface, this requires two action: dismissing the vulnerability and commenting on the dismissal activity that's generated. Combining these actions would hasten vulnerability triage and make it less likely to forget to attach the dismissal reason. One possible solution could be to introduce a quick action to the vulnerability page e.g. /dismiss <reason>.

Additional info

The GraphQL API exposes this ability today and can be integrated into the web interface.