Add theme selector

app/streamlit_app.py

@@ -5,10 +5,12 @@ import queries.user as user_queries
 from logger import init_logger
 from styles import init_styles
 from user import init_user, is_login_enabled, is_logged_in
+from themes import init_themes
 
 init_logger()
 init_user()
 init_styles()
+init_themes()
 
 if is_login_enabled and not is_logged_in:
     with st.container(width="stretch", height="stretch", horizontal_alignment="center"):