added keymap to move split pane

lua/custom/keymaps.lua

@@ -91,3 +91,14 @@ keymap.set('n', '<leader>v', [[:lua move_to_vertical_split()<CR>]], { noremap =
 
 -- select a session to load
 keymap.set("n", "<F2>", '<cmd>Telescope persisted<CR>', { silent = true })
+
+keymap.set("n", "<leader>m", function()
+	local winid = vim.api.nvim_get_current_win()
+	local wininfo = vim.fn.getwininfo(winid)[1]
+
+	if wininfo and wininfo.wincol > vim.o.columns / 2 then
+		vim.cmd("wincmd H") -- Move to the left if currently on the right
+	else
+		vim.cmd("wincmd L") -- Move to the right if currently on the left
+	end
+end, { desc = "Move buffer between left/right split" })