Update app.py

app.py

@@ -140,7 +140,7 @@ async def main():
         login_form()
         return
 
-    prompt = st.sidebar.text_area("Descripción de la imagen", height=150, max_chars=500)
+    prompt = st.sidebar.text_area("Descripción de la imagen", height=150, max_chars=900)
     format_option = st.sidebar.selectbox("Formato", ["9:16", "16:9", "1:1"]) 
     prompt_checkbox = st.sidebar.checkbox("Mejorar Prompt")
     model_option = st.sidebar.selectbox("Modelo", ["black-forest-labs/FLUX.1-schnell", "black-forest-labs/FLUX.1-dev"])