added leader v for split

lua/custom/keymaps.lua

@@ -61,3 +61,22 @@ keymap.set('n', '<leader>fs', '<Plug>(easymotion-overwin-f2)', { silent = true }
 
 -- Telescope history
 keymap.set('n', '<leader>fh', '<cmd>Telescope file_history history<CR>', { silent = true })
+
+-- Define a custom function to move the current buffer to a vertical split with the previous buffer
+function move_to_vertical_split()
+	local current_buffer = vim.fn.bufnr('%') -- Get the current buffer number
+	local last_buffer = vim.fn.bufnr('#') -- Get the previous buffer number
+
+	-- Check if last_buffer is set; if not, duplicate the current buffer
+	if last_buffer == -1 then
+		vim.cmd('vsplit')
+		vim.cmd('b ' .. current_buffer)
+	else
+		vim.cmd('vsplit')
+		vim.cmd('b ' .. last_buffer)
+		vim.cmd('wincmd w') -- Switch focus to the original (current) buffer
+	end
+end
+
+-- Map <leader>v to the custom function
+keymap.set('n', '<leader>v', [[:lua move_to_vertical_split()<CR>]], { noremap = true, silent = true })