default tb len as 1536

Signed-off-by: peter szemraj <peterszemraj@gmail.com>

app.py

@@ -356,9 +356,9 @@ if __name__ == "__main__":
                     step=0.05,
                 )
                 token_batch_length = gr.Radio(
-                    choices=[512, 768, 1024, 1536],
+                    choices=[512, 1024, 1536, 2048],
                     label="token batch length",
-                    value=1024,
+                    value=1536,
                 )
 
             with gr.Row(variant="compact"):