Centralizes the empty mesaage.

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

@@ -39,6 +39,7 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
@@ -105,12 +106,14 @@ internal fun ColumnScope.NestChatPanel(
                     .weight(1f, fill = true),
         ) {
             if (messages.isEmpty()) {
-                Text(
-                    text = stringRes(R.string.nest_chat_empty),
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    modifier = Modifier.padding(vertical = 12.dp),
-                )
+                Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                    Text(
+                        text = stringRes(R.string.nest_chat_empty),
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(vertical = 12.dp),
+                    )
+                }
             } else {
                 NestChatMessageList(
                     messages = messages,