chore(mappings): improve example mappings

mappings.lua

@@ -7,11 +7,23 @@ return {
   -- first key is the mode
   n = {
     -- second key is the lefthand side of the map
+
+    -- navigate buffer tabs with `H` and `L`
+    -- L = {
+    --   function() require("astronvim.utils.buffer").nav(vim.v.count > 0 and vim.v.count or 1) end,
+    --   desc = "Next buffer",
+    -- },
+    -- H = {
+    --   function() require("astronvim.utils.buffer").nav(-(vim.v.count > 0 and vim.v.count or 1)) end,
+    --   desc = "Previous buffer",
+    -- },
+
     -- mappings seen under group name "Buffer"
-    ["<leader>bn"] = { "<cmd>tabnew<cr>", desc = "New tab" },
     ["<leader>bD"] = {
       function()
-        require("astronvim.utils.status").heirline.buffer_picker(function(bufnr) require("astronvim.utils.buffer").close(bufnr) end)
+        require("astronvim.utils.status").heirline.buffer_picker(
+          function(bufnr) require("astronvim.utils.buffer").close(bufnr) end
+        )
       end,
       desc = "Pick to close",
     },