Desktop: background store reads from the tray (no document.hidden skip, backoff), notifications by kind (rejected, approved, live, halted, crash, reviews) with switches, quiet hours and mute, click-through on next show; tray menu with apps and their states, read now, mute, updates, settings, tooltip summary and attention dot; tray_update command; tests

apps/desktop/tests/fixtures/state/shared-profiles.host.json

@@ -75,8 +75,16 @@
       },
       "channel": "stable",
       "notify": {
+        "approved": true,
         "crash": true,
+        "live": true,
         "lowReviews": true,
+        "quietHours": {
+          "enabled": false,
+          "from": "23:00",
+          "to": "08:00"
+        },
+        "rejected": true,
         "reviewState": true
       },
       "refresh": {