add selinux tip

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/lang/lv.rs

@@ -565,5 +565,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Open in new window", "Atvērt jaunā logā"),
         ("Show displays as individual windows", "Rādīt displejus kā atsevišķus logus"),
         ("Use all my displays for the remote session", "Izmantot visus manus displejus attālajai sesijai"),
+        ("selinux_tip", ""),
     ].iter().cloned().collect();
 }