feat(backend) cargo fmt & migration to rust 2024

backend/server/src/modules/mod.rs

@@ -5,7 +5,7 @@ use std::num::ParseIntError;
 
 use crate::{
     constants::config::server::{default_value, var_name},
-    scheduler::{tasks::CronTask, Scheduler},
+    scheduler::{Scheduler, tasks::CronTask},
 };
 use macros::error_panic;