refactor: cleanup keymaps and fixed bnext/bprev when bufferline is disabled

lua/lazyvim/plugins/ui.lua

@@ -43,6 +43,10 @@ return {
   {
     "akinsho/nvim-bufferline.lua",
     event = "VeryLazy",
+    init = function()
+      vim.keymap.set("n", "<s-h>", "<cmd>BufferLineCyclePrev<cr>", { desc = "Prev Buffer" })
+      vim.keymap.set("n", "<s-l>", "<cmd>BufferLineCycleNext<cr>", { desc = "Next Buffer" })
+    end,
     opts = {
       options = {
         diagnostics = "nvim_lsp",