Refactor using Tauri (#278)

apps/gpauth/src/main.rs

@@ -0,0 +1,9 @@
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+mod auth_window;
+mod cli;
+
+#[tokio::main]
+async fn main() {
+  cli::run().await;
+}