add estimate time

app.py

@@ -65,7 +65,7 @@ def generate_button(prefix, file_input, version, **kwargs):
         )
 
     if st.button("Generate image", key=f"{prefix}-btn"):
-        with st.spinner(f"⏳ Generating image... ({n_samples*5} estimated time)"):
+        with st.spinner(f"⏳ Generating image... ({n_samples*5} minutes estimated time)"):
             image = toggle_process( ttf_to_image(file_input, n_samples, ref_char_ids, version) )
             set_img(OUTPUT_IMG_KEY, image.copy())
         st.image(image)