restart listener when config changes

src-tauri/src/errors.rs

@@ -89,6 +89,8 @@ pub enum SetupError {
     ConfigParseError(#[from] serde_json::Error),
     #[error("Failed to set up start-on-login: {0}")]
     AutoLaunchError(#[from] auto_launch::Error),
+    #[error("Failed to start listener: {0}")]
+    ServerSetupError(#[from] std::io::Error),
 }