Command Pallet should use / instead of ? for consistancy

Reported by Garrett LeSage on twitter: https://twitter.com/garrett/status/1356912082399150080

The issue is, if Gimp, vim, firefox and others all use / but inkscape uses shift+/ (i.e. ?) should we change it before the 1.1 release bakes it into people's muscle memory?

I believe there was a discussion about which key to press, but I can't find it at the moment.