dev-desktop: set vim alternative

[joshtriplett]

The dev desktops install neovim, which accurately has a reputation for
having friendlier defaults. It's a good default for people who don't
have a specific preference for classic vim. So, use
update-alternatives to set vim to refer to neovim.

[marcoieni]

I'm against this change. I don't think overriding ubuntu's default is a good idea. It might be surprising for developers discovering that vim links to neovim.

People can set this themselves if they want for their user.

I'm curious to see what others think.

[joshtriplett]

I don't think overriding ubuntu's default is a good idea.

Ubuntu, and Debian, have the same priority (30) for the /usr/bin/vim alternative provided by vim and neovim. AFAICT, they don't express a preference between the two. The alternative just points to whichever of vim and neovim is installed first.

/usr/bin/nvim - priority 30
/usr/bin/vim.basic - priority 30