Update app.py

correct user window/name issue ?

app.py

@@ -235,11 +235,15 @@ def set_speak_button(txt):
         vis = True
     return gr.Button(visible=vis)
 
-def update_user(txt):
-    user = txt.strip().lower()
+def update_user(user_win):
+    user_win = user_win.lower().strip()
+    user = 'unknown'
+    for s in unames:
+        if user_win == s:
+            user = s
+            break
     return [user, user]
 
-
 def speech_worker(chunks=[],q=[]):
     for chunk in chunks:
         fpath = q.pop(0)