Configure chord for link clicking in alternate buffers

[silby]

According to the answer in #6804, ctrl-shift-click (resp. cmd-shift-click) is required to click a matched link in an alternate buffer, such as in a text editor, as opposed to the usual ctrl-click or cmd-click. Presumably this is a choice that solved a problem for someone who needed ctrl-click to not be intercepted by Ghostty. Having not ever had the problem using iTerm2, I'd rather not have to think about whether I'm trying to click a URL inside or outside vim. Hence I request a knob to keep the link-clicking chord the same between buffers.

[rhodes-b]

as stated in the post you referenced the behavior should be lumped under configurable mouse actions anyways
#3848