The comments of the configuration of which-key are outdated #1249

  -- Then, because we use the `config` key, the configuration only runs
  -- after the plugin has been loaded:
  --  config = function() ... end
...
  { -- Useful plugin to show you pending keybinds.
    'folke/which-key.nvim',
    event = 'VimEnter', -- Sets the loading event to 'VimEnter'
    opts = {
      icons = {