modularize frontend and implement new css and themes

src/main.rs

@@ -39,6 +39,8 @@ async fn main() {
         .route("/user", get(handlers::pages::user_page))
         .route("/supporter", get(handlers::pages::supporter_page))
         .route("/reset-countdown", get(handlers::pages::reset_countdown))
+        // New API endpoint for creating sessions without a form
+        .route("/api/session/create", post(handlers::chat::create_session))
         .route("/ws/user/:session_id", get(handlers::ws::user_ws))
         .route(
             "/ws/supporter/:supporter_id",
@@ -55,7 +57,7 @@ async fn main() {
             post(handlers::chat::supporter_send_message),
         )
         .route("/sessions", get(handlers::chat::get_sessions))
-        .route("/sessions/new", post(handlers::chat::new_session))
+        // Removed: .route("/sessions/new", post(handlers::chat::new_session))
         .nest_service("/static", ServeDir::new("static"))
         .with_state(state);