fix: show output after error

index.html

@@ -383,6 +383,7 @@
         }
 
         function applyTemplate() {
+            document.getElementById("output").style.display = "block";
             document.getElementById("error").style.display = "none";
             const template = document.getElementById('template').value;
             const addGenerationPrompt = document.getElementById('addGenerationPrompt').checked;