Merge 'upstream' timeoutlen, cmp scroll, friendly snippets, luasnip, ruby

Merged:
- fix: disable ts indenting for Ruby
- doc: add note about advanced luasnip features
- Move friendly snippets to dependencies of LuaSnip (#759)
- Add <C-b>/<C-f> cmp mapping to scroll cmp docs (#750)
- doc: add info about timeoutlen (#691)

lua/kickstart/plugins/cmp.lua

@@ -15,6 +15,17 @@ return {
           end
           return 'make install_jsregexp'
         end)(),
+        dependencies = {
+          -- `friendly-snippets` contains a variety of premade snippets.
+          --    See the README about individual language/framework/plugin snippets:
+          --    https://github.com/rafamadriz/friendly-snippets
+          -- {
+          --   'rafamadriz/friendly-snippets',
+          --   config = function()
+          --     require('luasnip.loaders.from_vscode').lazy_load()
+          --   end,
+          -- },
+        },
       },
       'saadparwaiz1/cmp_luasnip',
 
@@ -23,12 +34,6 @@ return {
       --  into multiple repos for maintenance purposes.
       'hrsh7th/cmp-nvim-lsp',
       'hrsh7th/cmp-path',
-
-      -- If you want to add a bunch of pre-configured snippets,
-      --    you can use this plugin to help you. It even has snippets
-      --    for various frameworks/libraries/etc. but you will have to
-      --    set up the ones that are useful for you.
-      -- 'rafamadriz/friendly-snippets',
     },
     config = function()
       -- See `:help cmp`
@@ -54,6 +59,10 @@ return {
           -- Select the [p]revious item
           ['<C-p>'] = cmp.mapping.select_prev_item(),
 
+          -- scroll the documentation window [b]ack / [f]orward
+          ['<C-b>'] = cmp.mapping.scroll_docs(-4),
+          ['<C-f>'] = cmp.mapping.scroll_docs(4),
+
           -- Accept ([y]es) the completion.
           --  This will auto-import if your LSP supports it.
           --  This will expand snippets if the LSP sent a snippet.
@@ -82,6 +91,9 @@ return {
               luasnip.jump(-1)
             end
           end, { 'i', 's' }),
+
+          -- For more advanced luasnip keymaps (e.g. selecting choice nodes, expansion) see:
+          --    https://github.com/L3MON4D3/LuaSnip?tab=readme-ov-file#keymaps
         },
         sources = {
           { name = 'nvim_lsp' },