feat(terminal): add two-row floating keyboard buttons for common commands (mobile only) (#13876)

* feat(terminal): add two-row floating keyboard buttons for common commands (mobile only)

* Fix missing newline at end of pl.rs

Add missing newline at the end of the file.

src/lang/fa.rs

@@ -729,5 +729,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("server-oss-not-support-tip", "توجه: سرور RustDesk OSS این ویژگی را ندارد."),
         ("input note here", "یادداشت را اینجا وارد کنید"),
         ("note-at-conn-end-tip", "در پایان اتصال، یادداشت بخواهید"),
+        ("Show terminal extra keys", ""),
     ].iter().cloned().collect();
 }