Alert configuration for already existing high-priority issues

### Use case

We want to be alerted when the issue is seen more than 5 times in 15 minutes for **high priority issues**.

### Problem

With the current alert configuration options, it is not possible to have alerts for such a use case.
We can set the alert configuration to be as follows:

But this creates unnecessary noise as it will also trigger alerts for issues of lower priority.

### Solution Brainstorm

- Add possibility to configure alerts based on the issue priority

### Product Area

Alerts

Begin with the existing alert configuration and the Alerts product area; verify how issue priority and the “seen more than 5 times in 15 minutes” condition are represented. Done means an alert can target high-priority issues without notifying for lower-priority issues, with coverage for the described scenario.

Written by the indexing model from the issue text.