feature request: filter notification by regex

[scarf005]

Rationale

Being able to ignore PR/issues from automation bots (e.g version packages PR from changeset would be very useful in reducing cognitive load.

Solution

Add a configuration, 'blocklist notification by regex'. Issues/PRs matching given regular expression will be omitted from:

• sending alarm sound
• contributing to total number of notification

Alternatives

being able to ignore PRs/issues from bots.

[RobSpringer]

Related: if not regex, being able to specify a GitHub filter, e.g. "reason:review-requested or reason:assigned" would also serve.