iOS 13 (and 14?) view doesn't show well

[nil2l]

iOS 13
Library v 1.9.1

1. MarkdownUI's height stays zero.
2. MarkdownUI.onRendered() callback doesn't receive anything.
3. Also, MarkdownView.onRendered() callback doesn't receive anything.

Workaround
In version 1.8.x callbacks works well. So it can be fixed by defining MarkdownUI (presented in 1.9) with frame(height:) bound with onRendered(height).

Note
It's really critical. As the library normally needed for iOS 13 and 14. While iOS 15 already has built-in markdown for Text views (though features are limited yet...).