feat: watch linux theme changed (#7781)

* feat: add Linux theme change notifications and update dark-light dependency

* fix: remove unused tauri Emitter import

* update changelog

* fix: clippy

* fix: pnpm format

src-tauri/src/utils/resolve/mod.rs

@@ -40,6 +40,8 @@ pub fn resolve_setup_sync() {
     AsyncHandler::spawn(|| async {
         AsyncHandler::spawn_blocking(init_scheme);
         AsyncHandler::spawn_blocking(init_embed_server);
+        #[cfg(target_os = "linux")]
+        AsyncHandler::spawn_blocking(watch_linux_theme_changed);
     });
 }
 
@@ -111,6 +113,30 @@ pub(super) fn init_embed_server() {
     server::embed_server();
 }
 
+#[cfg(target_os = "linux")]
+pub(crate) fn watch_linux_theme_changed() {
+    match dark_light::subscribe() {
+        Ok(watcher) => {
+            for mode in watcher.iter() {
+                use crate::core::notification;
+
+                let theme = match mode {
+                    dark_light::Mode::Light => tauri::Theme::Light,
+                    dark_light::Mode::Dark => tauri::Theme::Dark,
+                    dark_light::Mode::Unspecified => tauri::Theme::Light, // fallback to light
+                };
+                notification::NotificationSystem::send_event(
+                    Handle::app_handle().clone(),
+                    notification::FrontendEvent::ThemeChanged { theme },
+                );
+            }
+        }
+        Err(e) => {
+            logging_error!(Type::Setup, "Fail to watch linux theme changed: {}", e);
+        }
+    }
+}
+
 pub(super) async fn init_resources() {
     logging_error!(Type::Setup, init::init_resources().await);
 }