use the proper i3config filetype

dotfiles/nvim/init.vim

@@ -155,6 +155,8 @@ call plug#end()
     set title
 
     let g:python_highlight_all = 1
+
+    autocmd FileType i3config hi Error none
 "}}}
 " Gay colors{{{
 

dotfiles/sway.conf

@@ -362,4 +362,4 @@ bindsym $mod+escape mode Passthrough
 
     include /etc/sway/config.d/
 #}}}
-# vim:filetype=sh:foldmethod=marker
+# vim:filetype=i3config:foldmethod=marker