Add fallback() to autocompletion, add comments shortcut, add require

plugins

lua/kickstart/plugins/autocompletion.lua

@@ -86,16 +86,24 @@ return { -- Autocompletion
         --
         -- <c-l> will move you to the right of each of the expansion locations.
         -- <c-h> is similar, except moving you backwards.
-        ['<Tab>'] = cmp.mapping(function()
-          if luasnip.expand_or_locally_jumpable() then
+        ['<Tab>'] = cmp.mapping(function(fallback)
+          if cmp.visible() then
+            cmp.select_next_item()
+          elseif luasnip.expand_or_locally_jumpable() then
             luasnip.expand_or_jump()
+          else
+            fallback()
           end
-        end, { 's' }),
-        ['<S-Tab>'] = cmp.mapping(function()
-          if luasnip.locally_jumpable(-1) then
+        end, { 'i', 's' }),
+        ['<S-Tab>'] = cmp.mapping(function(fallback)
+          if cmp.visible() then
+            cmp.select_next_item()
+          elseif luasnip.locally_jumpable(-1) then
             luasnip.jump(-1)
+          else
+            fallback()
           end
-        end, { 's' }),
+        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

lua/kickstart/plugins/comments.lua

@@ -0,0 +1,17 @@
+return {
+  'numToStr/Comment.nvim',
+
+  config = function()
+    require('Comment').setup {
+      opleader = {
+        ---Line-comment keymap
+        line = '<leader>/',
+      },
+      toggler = {
+        line = '<leader>/',
+      },
+    }
+  end,
+
+  lazy = false,
+}