Refresh and re-render the widget's information, given the current page url.
If you house the chat widget on a single-page application, this method can be useful to refresh the widget on route changes. This allows you to specify different chatflows on different page routes. If widget.refresh is called on a route where there is no chatflow, the widget will be removed.
Notes:
widget.refreshwill preserve any existing conversations that a page visitor has started in the widget.widget.refreshis throttled to one call per second.