create file upload example

packages/desktop/Cargo.toml

@@ -23,12 +23,13 @@ thiserror = "1.0.30"
 log = "0.4.14"
 wry = { version = "0.27.2" }
 futures-channel = "0.3.21"
-tokio = { version = "1.16.1", features = [
+tokio = { version = "1.27", features = [
     "sync",
     "rt-multi-thread",
     "rt",
     "time",
     "macros",
+    "fs",
 ], optional = true, default-features = false }
 webbrowser = "0.8.0"
 infer = "0.11.0"