Put handler on login_by_token shared page

src/shared_page.py

@@ -23,7 +23,11 @@ def local_css():
 def login_token_arg_if_exists():
     url_params = st.query_params
     if arg_token := url_params.get("token"):
-        login_by_token(arg_token)
+        try:
+            login_by_token(arg_token)
+        except Exception:
+            st.write("Sorry, error logging in.  Please refresh to try again.")
+            st.stop()
 
 
 def common_page_config():