Refactor main.rs for clarity and modularity in rustfs-gui (#225)

* Improve init_logger function and format code with cargo fmt

- Enhance `init_logger` function for better logging configuration.
- Apply `cargo fmt` to format the codebase.

* Refactor main.rs for clarity and modularity in rustfs-gui

- Move `init_logger` function to `utils/logger.rs` for better separation of concerns.
- Create a dedicated `router` module in `router/router.rs`.
- Update `main.rs` to use the new `logger` and `router` modules.
- Apply `cargo fmt` to format the codebase.

cli/rustfs-gui/Cargo.toml

@@ -42,9 +42,9 @@ inherits = "dev"
 inherits = "dev"
 
 [profile.release]
-opt-level = 3  # 优化级别（0-3）
-lto = true     # 启用链接时优化
-codegen-units = 1  # 减少代码生成单元以提高优化效果
+opt-level = 3  # Optimization Level (0-3)
+lto = true     # Optimize when linking
+codegen-units = 1  # Reduce code generation units to improve optimization
 
 [lints]
 workspace = true