Complete Android invitation dialog imports and show share link lifetime

tools/chatgui-android/app/src/main/java/com/utun/chat/MainActivity.kt

@@ -31,6 +31,14 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.statusBars
 import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.LinearProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.ui.res.stringResource
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.runtime.*
 import androidx.compose.runtime.saveable.rememberSaveable

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/InviteLinkDialog.kt

@@ -56,6 +56,8 @@ fun InviteLinkDialog(
         title = { Text(stringResource(R.string.invite_link), fontWeight = FontWeight.Bold) },
         text = {
             Column(horizontalAlignment = Alignment.CenterHorizontally) {
+                Text(stringResource(R.string.invite_lifetime), style = MaterialTheme.typography.bodySmall)
+                Spacer(Modifier.height(8.dp))
                 Box {
                     OutlinedButton(onClick = { menuOpen = true }) {
                         Text(

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt

@@ -20,6 +20,7 @@ import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import android.util.Log
 import androidx.compose.material.icons.automirrored.filled.Message
 import androidx.compose.material.icons.filled.Call
+import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Close
 import androidx.compose.material.icons.filled.Storage
 import androidx.compose.material.icons.filled.Bolt