implement review comments

app/src/main/java/com/bitchat/android/ui/LocationNotesButton.kt

@@ -51,7 +51,7 @@ fun LocationNotesButton(
 
     // Only show in mesh mode when location is authorized (iOS pattern)
     if (selectedLocationChannel is ChannelID.Mesh && locationEnabled) {
-        val hasNotes = (notesCount ?: 0) > 0
+        val hasNotes = notesCount > 0
         IconButton(
             onClick = onClick,
             modifier = modifier.size(24.dp)

app/src/main/java/com/bitchat/android/ui/LocationNotesSheetPresenter.kt

@@ -62,8 +62,10 @@ private fun LocationNotesErrorSheet(
     onDismiss: () -> Unit,
     locationManager: LocationChannelManager
 ) {
+    val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)
     ModalBottomSheet(
         onDismissRequest = onDismiss,
+        sheetState = sheetState,
         containerColor = MaterialTheme.colorScheme.surface
     ) {
         Column(