message: retain context when hidden
diff: @@ -69,6 +69,9 @@ export class ReactPanel {
  // Enable javascript in the webview
  enableScripts: true,
  + // Keep the wizard in its current state
  + retainContextWhenHidden: true,
  +
  // And restric the webview to only loading content from our extension's `media` directory.
  localResourceRoots: [
  vscode.Uri.file(path.join(this._extensionPath, "react"))
  