Update templates/index.html

templates/index.html

@@ -499,7 +499,7 @@ Rate Limits (Free Tier):
         }
     });
 
-    generateBtn.addEventListener('click', async () => {
+    generate.addEventListener('click', async () => {
         const text = textInput.value.trim();
         const model = modelSelect.value;
         const voice = voiceSelect.value;