feat: add entry in left panel

src/lang/cn.rs

@@ -499,6 +499,7 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Copy Fingerprint", "复制指纹"),
         ("no fingerprints", "没有指纹"),
         ("Select a peer", "选择一个被控端"),
-        ("Select peers", "选择被控端")
+        ("Select peers", "选择被控"),
+        ("Plugins", "插件")
     ].iter().cloned().collect();
 }