Version: latest ### Bug Description Method `addHtml()` has `mixed` type definition, which is incorrect. In fact it really expects `HtmlStringable|string`, because of inner call of `->insert()`. ~The same applies to `addText()`.~ ### Steps To Reproduce Html::el('span')->addHtml(0); // results in following TypeError ``` TypeError Nette\Utils\Html::insert(): Argument #2 ($child) must be of type Nette\HtmlStringable|string, int given ``` ### Expected Behavior No type error being thrown