fix(nests): drop redundant Live chip while broadcasting

The red Mic-on FilledIconButton already conveys "you are live, tap
to stop" — the AssistChip labelled "Live" beside it was duplicate
visual noise. Removed the chip and its now-orphan string. Mute toggle
+ red Mic + Leave the Stage are sufficient to express the broadcasting
state.

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/screen/NestActionBar.kt

@@ -34,7 +34,6 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.material3.AssistChip
-import androidx.compose.material3.AssistChipDefaults
 import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.FilledIconButton
@@ -338,15 +337,6 @@ private fun OnStageControls(
         }
 
         is BroadcastUiState.Broadcasting -> {
-            AssistChip(
-                onClick = {},
-                enabled = false,
-                label = { Text(stringRes(R.string.nest_broadcasting)) },
-                colors =
-                    AssistChipDefaults.assistChipColors(
-                        disabledLabelColor = MaterialTheme.colorScheme.error,
-                    ),
-            )
             FilledTonalIconToggleButton(
                 checked = broadcast.isMuted,
                 onCheckedChange = { viewModel.setMicMuted(it) },

amethyst/src/main/res/values/strings.xml

@@ -521,7 +521,6 @@
     <string name="nest_mic_mute">Mute mic</string>
     <string name="nest_mic_unmute">Unmute mic</string>
     <string name="nest_broadcast_connecting">Going live…</string>
-    <string name="nest_broadcasting">Live</string>
     <string name="nest_broadcast_failed">Broadcast failed: %1$s</string>
     <string name="nest_mute_failed">Mute failed: %1$s</string>
     <string name="nest_record_permission_required">Microphone access is required to talk in this room.</string>