Alert quick actions on mouseover appear in wrong location in Safari

[jonhammer]

Issue Summary
On Safari viewing the alerts page, when you mouseover an alert, the actions appear in the wrong location. When you move your mouse to that location, the action buttons will only affect the last alert in the list.

Environment

• OS: Mac, Safari 15.2

• API version: 8.7.0

• Deployment: Docker (default docker-compose.yml from docker-alerta repo)

• For self-hosted, WSGI environment: nginx/uwsgi

• Database: Postgres

• Server config:
  Auth enabled? Both
  Auth provider? None, Local, LDAP
  Customer views? No

• web UI version: 8.7.0

• CLI version: n/a

To Reproduce
Open alerts page and mouseover any alert in safari

Screenshots
Mouseover on first alert causes the action items to appear at the top right in RED (note changing the size of the window has no effect no this):

Moving the mouse to those buttons, they change to BLUE (last alert in view):

Taking any action appears to always affect the last alert in the view.