timeout of webrtc fallback to delay

src/lang/template.rs

@@ -778,5 +778,7 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("The screen sharing request ended without completing on the remote device", ""),
         ("RustDesk could not obtain a usable screen from the XDG Desktop Portal, the PipeWire library may be too old", ""),
         ("RustDesk could not load a GStreamer component needed for screen capture ({})", ""),
+        ("Relay fallback delay in seconds", ""),
+        ("relay-fallback-delay-tip", ""),
     ].iter().cloned().collect();
 }