windows/mac tray tooltip show controlled session count

* ubuntu 22.04 can't see tooltip

Signed-off-by: 21pages <pages21@163.com>

src/lang/cn.rs

@@ -544,5 +544,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Installation Successful!", "安装成功!"),
         ("Installation failed!", "安装失败!"),
         ("Reverse mouse wheel", "鼠标滚轮反向"),
+        ("{} sessions", "{}个会话"),
     ].iter().cloned().collect();
 }