Enable prev and next actions when not filtering even if no options are available

[semihbkgr]

fixes #422

It disables prev and next actions when no options are available, including during filtering.

[bashbunni]

hey @semihbkgr is this still a relevant change given this is fixed on main?

If so, please also include an example output of the before and after along with steps to test out this change :)

[semihbkgr]

Hi @bashbunni, I don't think this issue has been resolved on the main branch, based on my observations.

[semihbkgr]

It is an example where you cannot move the cursor up or down when there are no items to select in Select.

search := ""

form := huh.NewForm(
  huh.NewGroup(
	  huh.NewInput().
		  Key("search").
		  Value(&search).
		  Title("Search"),
	  huh.NewSelect[string]().
		  OptionsFunc(func() []huh.Option[string] {
			  return []huh.Option[string]{}
		  }, &search).
		  Title("Select"),
	  huh.NewInput().
		  Key("last").
		  Title("Last"),
  ),
)

err := form.Run()
if err != nil {
  panic(err)
}

After the cursor targets the Select, you can neither move to the next item by pressing Tab nor move back by pressing Shift+Tab.