refac: rating

src/lib/components/chat/Messages/RateComment.svelte

@@ -81,7 +81,7 @@
 	};
 </script>
 
-{#if selectedModel}
+{#if message?.arena}
 	<div class="text-xs font-medium translate-y-1.5">
 		{$i18n.t('This response was generated by "{{model}}"', {
 			model: selectedModel ? (selectedModel?.name ?? selectedModel.id) : message.selectedModelId