remove unused type inference

src/app/layout.tsx

@@ -26,12 +26,12 @@ export default function RootLayout({ children }: { children: React.ReactNode })
       addToast({ title: "启动国服成功" })
     })
 
-    void listen<string>("tray://kill_steam", async () => {
+    void listen("tray://kill_steam", async () => {
       await invoke("kill_steam")
       addToast({ title: "已关闭Steam" })
     })
 
-    void listen<string>("tray://kill_game", async () => {
+    void listen("tray://kill_game", async () => {
       await invoke("kill_game")
       addToast({ title: "已关闭CS2" })
     })