refactor: reduce webview lock contention (#6271)

* refactor: replace handle::Handle::get_window() with WindowManager::get_main_window() in multiple files

* refactor: enhance WindowManager to return window state alongside the main window instance

* refactor: update useProfiles and ProfilePage to support profile overrides and improve patchProfilesConfig return type

* refactor: enhance handle_success to check main window existence before notifying profile changes

* refactor: simplify get_main_window_with_state by using pattern matching and improve window state handling

* refactor: fix window activation by removing unnecessary reference in activate_existing_main_window

* refactor: remove redundant macOS conditional for window_manager import

src-tauri/src/core/notification.rs

@@ -1,5 +1,5 @@
 use super::handle::Handle;
-use crate::constants::timing;
+use crate::{constants::timing, utils::window_manager::WindowManager};
 use clash_verge_logging::{Type, logging};
 use smartstring::alias::String;
 use std::{sync::mpsc, thread};
@@ -84,7 +84,7 @@ impl NotificationSystem {
             None => return,
         };
 
-        if let Some(window) = super::handle::Handle::get_window() {
+        if let Some(window) = WindowManager::get_main_window() {
             system.emit_to_window(&window, event);
             drop(binding);
             thread::sleep(timing::EVENT_EMIT_DELAY);