neldredge authored Sep 17, 2022 and Luca Bacci committed Sep 17, 2022

Add "stylus" to the list of substrings in a device name that cause it to be recognized
as a GDK_SOURCE_PEN device (previously "wacom", "pen" and "eraser").  Some devices
just use "stylus" in their name, and are otherwise recognized as
GDK_SOURCE_TOUCHSCREEN instead.

Fixes #4394.