add colorcolumn

lua/core/options.lua

@@ -16,6 +16,7 @@ opt.number = true
 opt.numberwidth = 2
 opt.relativenumber = true
 opt.ruler = false
+opt.colorcolumn = "100"
 
 -- indentline
 opt.expandtab = true

lua/plugins/configs/nvimtree.lua

@@ -3,7 +3,7 @@ local options = {
     dotfiles = false,
     exclude = { vim.fn.stdpath "config" .. "/lua/custom" },
   },
-  disable_netrw = true,
+  -- disable_netrw = true,
   hijack_netrw = true,
   hijack_cursor = true,
   hijack_unnamed_buffer_when_opening = false,