feat(statusline): add cmd to lualine

a

lua/config/plugins/lualine.lua

@@ -40,7 +40,7 @@ require("lualine").setup({
 				source = nil, -- A function that works as a data source for diff.
 			}
 		},
-		lualine_x = { 'encoding', 'filetype',
+		lualine_x = { '%S', 'encoding', 'filetype',
 			{
 				'diagnostics',