[Feature Request] Set foldcolumn=0 by default

[igorlfs]

Is your feature request related to a problem? Please describe.
When foldcolumn is set to a value other than "0", duplicate signs may be shown, e.g.

Describe the solution you'd like
set foldcolumn=0 by default for Neogit related buffers

Describe alternatives you've considered
So far, I've been using an autocmd to set the foldcolumn, which works fine for me, but I think the default experience could be improved with this setting.

Additional context
Relates to #1258 and #1400

[CKolkey]

Yea, good call. Done in 3e44062

[igorlfs]

Hey there! Thanks for the fix! I was wondering if the fix could also be applied to other Neogit related buffers, such as the NeogitCommitView, the NeogitLogView and so on. IMO the foldcolumn doesn't convey any info for these buffers and just fills space.

[CKolkey]

Sure :)

[windowsrefund]

TBH, I think this should be undone as it overrides a setup where foldcolumn is set to auto. Honestly, I think foldcolumn is more useful than signcolumn which I've disabled with disable_sign = true.