nvim: Put essential options above packer
nvim: Put essential options above packer

Options related to color scheme are often required to be set before
plugins that use them. I've tried using packer.nvim sequencing
mechanisms (event, cmd, after, so on), but their behavior is not clear,
there are a lot of caveats and gotchas and they make the plugin section
much larger.

The use case here is to ensure termguicolors is set before status line
and color scheme plugins are loaded. For just this, the worthwhile
approach is just setting them before packer.nvim is called.

cenouro/dotfiles