Nvim: switch to gruvbox8 until I find better wal alternative

Wal doesn't support gui colors properly, which makes many plugins ugly.

.config/nvim/init.vim

@@ -88,6 +88,8 @@ Plug 'vim-airline/vim-airline' | Plug 'vim-airline/vim-airline-themes'
 "
 call plug#end()
 
+set termguicolors
+
 if plug_install
     PlugInstall --sync
 endif
@@ -99,11 +101,16 @@ set clipboard+=unnamedplus
 set noshowmode
 set laststatus=2
 
+lua << EOF
+require("virt-column").setup { }
+EOF
 set colorcolumn=80
 
 set background=dark
-colorscheme wal
-highlight MatchParen ctermfg=yellow ctermbg=none cterm=NONE
+"colorscheme wal
+colorscheme gruvbox8
+highlight MatchParen cterm=underline ctermbg=black ctermfg=NONE
+highlight VirtColumn ctermfg=DarkGrey ctermbg=NONE
 set listchars=tab:▸\ ,trail:¬
 set list
 hi clear SpellBad