Implement a scrollable text box that displays a list of strings which
can be filtered. The widget is closed by pressing ESC or ENTER. If ENTER
is pressed and an entry has been selected, this text will be passed to
the closing callback.
Signed-off-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>