patch: update UI, clear previous FUSE

- UI updated, now allow copy and paste file in Linux
- Too hard to implement graceful shutdown for rustdesk, just clear
  previously mounted FUSE should also works

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

libs/clipboard/src/context_send.rs

@@ -38,7 +38,7 @@ impl ContextSend {
                     }
                     Err(err) => {
                         log::error!(
-                            "Create clipboard context for file transfer: {}",
+                            "create clipboard context for file transfer: {}",
                             err.to_string()
                         );
                     }