Test editor.multicursorModifier

[alexdima]

Testing #27193

• OSX @bpasero
• windows @chrisdias
• linux @isidorn

Complexity: 2

There is a new setting editor.multicursorModifier. On Linux and Windows it can have the value "ctrl" or "alt". On OSX it can have the value "cmd" or "alt". Please check:

• the default is "alt" (just as before). So without any changes, out of the box, multiple cursors are added via "alt" + click. It is a known issue that under some Linux distributions, multiple cursors cannot be added via "alt" + click, which is used to move windows, this new option aims to also overcome this limitation.
• when using alt as the multicursor modifier: ctrl+click (cmd+click) is used for going to definition and opening links. ctrl+alt+click (cmd+alt+click) is used for going to definition and opening in a side editor and for opening a link in a side editor (you can craft a file:/// link to test this)
• when using ctrl or cmd as the multicursor modifier, the 3 features swap modifiers and going to definition / opening a link is alt+click. ctrl+alt+click (cmd+alt+click) will still be used for going to definition / opening a link to the side. The hover message on links correctly shows the modifier to be used to open a link.

[Tyriar]

@alexandrudima any reason the c in cursor isn't in caps?