telescope: add a plugin to use Ag

- Adds a plugin to use Ag The Silversearcher with Telescope.
- Improves some comments.

Co-Authored-by: iGor milhit <igor@milhit.ch>

init.lua

@@ -198,8 +198,13 @@ require('lazy').setup({
     end,
   },
 
+  -- Extension to telescope to use Ag (or ripgrep) to filter results
+  {
+    'kelly-lin/telescope-ag'
+  },
+
+  -- Allow to search for snippets
   {
-    -- Allow to search for snippets
     'benfowler/telescope-luasnip.nvim'
   },
 
@@ -328,7 +333,10 @@ require('telescope').setup {
 
 -- Enable telescope fzf native, if installed
 pcall(require('telescope').load_extension, 'fzf')
+-- Enable telescope luasnip extension, if installed
 pcall(require('telescope').load_extension, 'luasnip')
+-- Enable telescope-ag extension, if installed
+pcall(require('telescope').load_extension, 'ag')
 
 -- See `:help telescope.builtin`
 vim.keymap.set('n', '<leader>?', require('telescope.builtin').oldfiles, { desc = '[?] Find recently opened files' })

lua/custom/plugins/zen-mode.lua

@@ -22,7 +22,7 @@ return {
       width = 85,
       height = .8,
       options = {
-        -- Disable line numbering.
+        -- Disable line numbering, signcolumn and colorcolumn.
         number = false,
         signcolumn = "no",
       },