Show hidden files with <leader>sf

The regular shortcut will not show hidden files, and it was annoying
when I had to edit a file like .yarnrc.yml and it wouldn't show up in
the picker.

Author: TheDDMbassy

lua/plugins/telescope.lua

@@ -71,9 +71,10 @@ return { -- Fuzzy Finder (files, lsp, etc)
     vim.keymap.set('n', '<leader>sk', builtin.keymaps, { desc = '[S]earch [K]eymaps' })
 
     vim.keymap.set('n', '<C-p>', builtin.find_files, { desc = '[S]earch [F]iles' })
-    -- Why the duplicate keymap? With the ergodox keyboard, moving your pinkies that much lateral
-    -- distance can get annoying. Sometimes easier to just use the larger fingers.
-    vim.keymap.set('n', '<leader>sf', builtin.find_files, { desc = '[S]earch [F]iles' })
+    -- Not a duplicate keymap, notice that this will show hidden files!
+    vim.keymap.set('n', '<leader>sf', function()
+      builtin.find_files { hidden = true }
+    end, { desc = '[S]earch [F]iles' })
 
     -- vim.keymap.set('n', '<leader>ss', builtin.builtin, { desc = '[S]earch [S]elect Telescope' })
     -- I wasn't using Search Select Telescope, and because ElixirLS doesn't have a good rename function, this will