feat: update Cargo.toml for 2024 edition and optimize release profiles (#4681)

* feat: update Cargo.toml for 2024 edition and optimize release profiles

* feat: refactor environment variable settings for Linux and improve code organization

* Refactor conditional statements to use `&&` for improved readability

- Updated multiple files to combine nested `if let` statements using `&&` for better clarity and conciseness.
- This change enhances the readability of the code by reducing indentation levels and making the conditions more straightforward.
- Affected files include: media_unlock_checker.rs, profile.rs, clash.rs, profiles.rs, async_proxy_query.rs, core.rs, handle.rs, hotkey.rs, service.rs, timer.rs, tray/mod.rs, merge.rs, seq.rs, config.rs, proxy.rs, window.rs, general.rs, dirs.rs, i18n.rs, init.rs, network.rs, and window.rs in the resolve module.

* refactor: streamline conditional checks using `&&` for improved readability

src-tauri/src/feat/proxy.rs

@@ -13,21 +13,22 @@ pub async fn toggle_system_proxy() {
     // 获取当前系统代理状态
     let enable = {
         let verge = Config::verge().await;
-        let enable = verge.latest_ref().enable_system_proxy.unwrap_or(false);
-        enable
+
+        verge.latest_ref().enable_system_proxy.unwrap_or(false)
     };
     // 获取自动关闭连接设置
     let auto_close_connection = {
         let verge = Config::verge().await;
-        let auto_close = verge.latest_ref().auto_close_connection.unwrap_or(false);
-        auto_close
+
+        verge.latest_ref().auto_close_connection.unwrap_or(false)
     };
 
     // 如果当前系统代理即将关闭，且自动关闭连接设置为true，则关闭所有连接
-    if enable && auto_close_connection {
-        if let Err(err) = IpcManager::global().close_all_connections().await {
-            log::error!(target: "app", "Failed to close all connections: {err}");
-        }
+    if enable
+        && auto_close_connection
+        && let Err(err) = IpcManager::global().close_all_connections().await
+    {
+        log::error!(target: "app", "Failed to close all connections: {err}");
     }
 
     let patch_result = super::patch_verge(