FAComboBox OnTextInput does not fire

[avalanchus]

"FAComboBox.OnTextInput" does not fire when entering text or you need to add a public event "OnTextChanged".
I found the handling of changing the Text property in the source code, where the private "OnTextChanged" method is called. It would be good to add the mentioned event.

[amwx]

The TextInput event comes from higher up in Avalonia itself as a part of InputElement. It serves a different purpose and I can't invoke that event anyway since its declared higher up in the hierarchy.