fix: re-organize the ui

app.py

@@ -249,15 +249,11 @@ def hello(profile: gr.OAuthProfile | None) -> str:
     global USERNAME
     if profile is None:
         USERNAME = "guest"
-        return "I don't know you."
+        return "I don't know you. Please login:"
     USERNAME = profile.name
     return f"Hello {profile.name}"
     
 with gr.Blocks(css=CSS) as demo:
-
-    gr.LoginButton()
-    gr.LogoutButton()
-    gr.Markdown().attach_load_event(hello, None)
     
     with gr.Row():
         with gr.Column():
@@ -266,6 +262,9 @@ with gr.Blocks(css=CSS) as demo:
                 PERSIAN GPT Trained by Mojtaba Valipour @ Data Analytics Lab
                 """
             )
+            gr.LoginButton()
+            #gr.LogoutButton()
+            gr.Markdown().attach_load_event(hello, None)
 
     chatbot.like(vote, None, None)