[Feature] Filter notifications based on content

[Vilhelm-Ian]

I'm always frustrated when I get a certain notification from a program but not all notifications from that program.

I want to if the notification contains a keyword to not be displayed

[quack-o]

you can already do that using notification-visibility

[Vilhelm-Ian]

where and what si that

[quack-o]

  "notification-visibility": {
    "DropSync": {
      "state": "ignored",
      "summary": "(?i)changes synced"
    }
  },