Add user color settings

app/user.py

@@ -0,0 +1,11 @@
+import queries.user as user_queries
+import streamlit as st
+
+is_login_enabled = hasattr(st, 'user') and hasattr(st.user, 'is_logged_in')
+is_logged_in = is_login_enabled and st.user.is_logged_in
+
+def init_user():
+    if is_logged_in:
+        user_queries.set_user_in_session(st.user)
+    else:
+        st.session_state.user_id = 1  # default user