[Feature]: Ability to select the first item with Enter keydown even if it is not highlighted on Listbox

[ucyildirim]

Describe the feature

When filtering results in the Listbox component using <ListboxFilter />, it is necessary to highlight one of the results so that it can be selected with the Enter key.

I think that if any filter has been entered, pressing the Enter key should automatically select the first result, even if it is not highlighted

Additional information

• I intend to submit a PR for this feature.
• I have already implemented and/or tested this feature.

[zernonia]

Hmm.. I think it's better to auto highlight the option when you filter the list. This way it provide visual cue to the usual that the item can be selected via "Enter".