Show AutoSuggestBox overlay when content is empty.

[frg2089]

Is your feature request related to a problem? Please describe.
I noticed this entry in the 4.7.2 changelog.

• fix: AutoSuggestBox overlay is now only displayed after the user started typing (d95970a)

I use it to displayed something like search history.
But now, it doesn't work.

Describe the solution you'd like
Is there anything that provides a way to provide a Suggest when the text is empty?
like

AutoSuggestBox({
  displayOverlayWhenClick: true
})

[bdlukaa]

I'd rather expose AutoSuggestBoxState to make it possible to open the overlay programatically. This way you could listen to the focus and show the overlay accordingly.

The native behavior is to only show the overlay when the user starts typing.

[bdlukaa]

This is fixed on 4b98f75

The example app shows how to do it!