add some comments to snacks picker to get it inline with telescope config

Author: Philipp Szechenyi

lua/kickstart/plugins/snacks.lua

@@ -132,6 +132,11 @@ return { -- Fuzzy Finder (files, lsp, etc)
     },
   },
 
+  -- This runs on LSP attach per buffer (see main LSP attach function in 'neovim/nvim-lspconfig' config for more info,
+  -- it is better explained there). This is a little bit redundant, but we can switch off pickers for an optional
+  -- picker like this one here more easily when the keymaps are defined in the plugin itself.
+  -- It sets up buffer-local keymaps, autocommands, and other LSP-related settings
+  -- whenever an LSP client attaches to a buffer.
   config = function()
     vim.api.nvim_create_autocmd('LspAttach', {
       group = vim.api.nvim_create_augroup('snacks-lsp-attach', { clear = true }),