Refactor open_devtools command to simplify the implementation by directly calling open_devtools on the webview window, improving code clarity.

Author: Sjj1024

src-tauri/src/command/cmds.rs

@@ -142,10 +142,7 @@ pub async fn open_url(_: tauri::AppHandle, url: String) {
 // open devtools
 #[tauri::command]
 pub async fn open_devtools(handle: AppHandle) {
-    if let Some(_) = handle.get_webview_window("main") {
-        println!("open devtools");
-        // existing_window.open_devtools();
-    }
+    let _ = handle.get_webview_window("main").unwrap().open_devtools();
 }
 
 #[tauri::command]