Disambiguate multi-select from right click on column headers

[naterush]

But when you right click to open the column header context menu, the cell selection gets expanded, which shouldn't be the case!

Note: This only happens because on a mac you need to press control + click to right click, which is a navigation key for us too. On a windows (or presumably when using a mouse) since you have a right click button this doesn't occur.

https://user-images.githubusercontent.com/18709905/167881193-71de3dd9-dbf7-4c6a-bd56-b3d0b4f72172.mov

EDIT: You can right click with two fingers also, which is why I didn't know this... I think I'll open a bug and leave this for now. I don't think there is an obvious solution, so we need to specify what we want!

Originally posted by @aarondr77 in https://github.com/mito-ds/monorepo/pull/282#issuecomment-1123891485