patch: forbid enable cliprdr without feature

Signed-off-by: ClSlaid <cailue@bupt.edu.cn>

src/ui_session_interface.rs

@@ -1420,7 +1420,10 @@ impl<T: InvokeUiSession> Session<T> {
 #[tokio::main(flavor = "current_thread")]
 pub async fn io_loop<T: InvokeUiSession>(handler: Session<T>, round: u32) {
     // It is ok to call this function multiple times.
-    #[cfg(any(target_os = "windows", target_os = "linux"))]
+    #[cfg(any(
+        target_os = "windows",
+        all(target_os = "linux", feature = "unix-file-copy-paste")
+    ))]
     if !handler.is_file_transfer() && !handler.is_port_forward() {
         clipboard::ContextSend::enable(true);
     }