fix(nests): emit canonical title tag and keep mute badge visible while muted

Two interrelated bugs from the deployed-schema flip:

1. Rooms created in Amethyst didn't appear in nostrnests's "Live Now"
   lobby. The lobby filter in NestsUI's skeleton.js requires a `title`
   tag on every kind:30312 — events without one are dropped from
   `live`/`planned`/`ended`. RoomNameTag still emitted the legacy
   `room` name, so our rooms passed our own readers (which tolerate
   both names) but were invisible to NestsUI. Flip canonical to
   `title`, keep `room` as legacy on read.

2. The mute badge over the avatar disappeared shortly after toggling
   mute, even though the broadcaster was still muted. Two causes:

   - ParticipantsGrid gated both the muted ring and the MicStateBadge
     on `member.publishing`. But per the deployed kind-10312 semantics
     `publishing=0` whenever `muted=1` (NestRoomPresencePublisher
     mirrors this — `publishingNow = broadcasting && !isMuted`), so
     the badge that was supposed to *indicate* mute was hidden
     exactly when it became relevant. Show the badge when on stage
     and either publishing OR muted; gate the muted ring on `muted`
     alone.

   - The presence heartbeat captured `micMutedTag` / `publishingTag`
     / `onstageTag` / `handRaised` at LaunchedEffect launch and never
     refreshed them. The 500 ms debounced LaunchedEffect did publish
     the new mute state, but ~30 s later the heartbeat overwrote it
     with the captured pre-toggle values, flipping `publishing`
     back to 1 and `muted` back to 0 server-side. Wrap the dynamic
     fields in `rememberUpdatedState` so the heartbeat reads the
     latest snapshot on every refresh; keep the existing key set
     (event/handRaised/onstage) for prompt re-emission on those
     transitions.

Tests updated for the new canonical `title` emission; both jvmTest
suites pass.

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip53LiveActivities/meetingSpaces/MeetingSpaceEventBuildTest.kt

@@ -52,7 +52,7 @@ class MeetingSpaceEventBuildTest {
         val byName = template.tags.groupBy { it[0] }
 
         assertEquals("main-hall", byName["d"]?.single()?.get(1))
-        assertEquals("Main Hall", byName["room"]?.single()?.get(1))
+        assertEquals("Main Hall", byName["title"]?.single()?.get(1))
         assertEquals("live", byName["status"]?.single()?.get(1))
         assertEquals("https://meet.example.com/hall", byName["auth"]?.single()?.get(1))
         assertEquals("https://api.example.com/hall", byName["streaming"]?.single()?.get(1))