Default out-of-the-box is no hotkey. Removed all the preference stuff.
Note that the new implementation is a little different: the old one only
operated on a selection with a single item where the new one operates on
all selected items. So if you want the whole track do a 'U' before the 'W'
(or whatever you have Change Track Width assigned to).
Fixes: lp:1844023
* https://bugs.launchpad.net/kicad/+bug/1844023
Snapping to item options were partially disconnected when unifying
framework. This re-attaches the options and adds the additional option
for graphical items.
Fixes: lp:1801377
* https://bugs.launchpad.net/kicad/+bug/1801377
Jeff Young
Wayne Stambaugh
Seth Hillbrand
jean-pierre charras