Fix list UI

Author: kirklandsign

llm/android/LlamaDemo/app/src/main/java/com/example/executorchllamademo/ui/screens/ModelSettingsScreen.kt

@@ -1041,7 +1041,12 @@ private fun SingleChoiceDialogWithPreselection(
         onDismissRequest = onDismiss,
         title = { Text(title) },
         text = {
-            Column {
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .heightIn(max = 400.dp)
+                    .verticalScroll(rememberScrollState())
+            ) {
                 options.forEach { option ->
                     Row(
                         modifier = Modifier