fix: Don't send webxdc notification for notify: "*" when chat is muted (#7658)

- webxdc notify specifically to Bob: notifies Bob even when chat is
muted
- webxdc notify to everyone ("*"): notifies Bob if he does not have the
chat muted

This aligns with how we handle notifications with quote replies.

---------

Co-authored-by: link2xt <link2xt@testrun.org>

src/test_utils.rs

@@ -1434,13 +1434,14 @@ impl EventTracker {
         event_matcher: F,
     ) -> Option<EventType> {
         ctx.emit_event(EventType::Test);
+        let mut found_event = None;
         loop {
             let event = self.recv().await.unwrap();
-            if event_matcher(&event.typ) {
-                return Some(event.typ);
-            }
             if let EventType::Test = event.typ {
-                return None;
+                return found_event;
+            }
+            if event_matcher(&event.typ) {
+                found_event = Some(event.typ);
             }
         }
     }