Update app.py

Moved theme from block to launch

app.py

@@ -595,7 +595,7 @@ def new_session(user_window, history):
            gr.File(visible=False, label='Upload File', type='filepath'), [] ]
 
 
-with gr.Blocks(theme=gr.themes.Soft()) as demo:
+with gr.Blocks() as demo:
     password = gr.State("")
     user = gr.State("unknown")
     uploaded_image_files = gr.State([])
@@ -654,4 +654,4 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
 # demo.launch(share=True, allowed_paths=[dataDir], ssr_mode=False)
     # demo.load(delete_db_files)
     demo.unload(clean_up_files)
-demo.launch(share=True, ssr_mode=False)
+demo.launch(share=True, ssr_mode=False, theme=gr.themes.Soft())