private async void DisplayPage(string htmlContent)
{
var dataFolder = await App.Current.Config.GetDataFolderAsync();
var file = dataFolder.CreateFileAsync("index.html", CreationCollisionOption.ReplaceExisting);
await FileIO.WriteTextAsync(await file, htmlContent);
var uri = Webview.BuildLocalStreamUri("wikidata", "/data/index.html");
_uri = uri;
var uriResolver = new MyUriToStreamResolver();
Webview.NavigateToLocalStreamUri(uri, uriResolver);
}