feat: add linter plugin (#699)

init.lua

@@ -831,6 +831,7 @@ require('lazy').setup({
   --
   -- require 'kickstart.plugins.debug',
   -- require 'kickstart.plugins.indent_line',
+  -- require 'kickstart.plugins.lint',
 
   -- NOTE: The import below can automatically add your own plugins, configuration, etc from `lua/custom/plugins/*.lua`
   --    This is the easiest way to modularize your config.