fix(nvim): fix background transparency

nvim/.config/nvim/plugins.vim

@@ -13,6 +13,7 @@ Plug 'lukas-reineke/indent-blankline.nvim'
 Plug 'machakann/vim-highlightedyank'
 Plug 'mattn/emmet-vim'
 Plug 'mg979/vim-visual-multi', {'branch': 'master'}
+Plug 'miyakogi/seiya.vim'
 Plug 'nanotech/jellybeans.vim'
 Plug 'neovim/nvim-lspconfig'
 Plug 'nvim-lua/plenary.nvim'

nvim/.config/nvim/plugins/seiya.vim

@@ -0,0 +1,4 @@
+let g:seiya_auto_enable=1
+
+" Neovim compatibility.
+let g:seiya_target_groups = has('nvim') ? ['guibg'] : ['ctermbg']