Modal

Check this: https://www.w3schools.com/jsref/met_dialog_showmodal.asp

The issue references the HTML dialog element's showModal method. Look at the repository's existing utility functions to understand the pattern. Determine what modal-related utility is needed—perhaps a wrapper for creating, showing, or managing dialogs. Check if there are any tests or examples to guide implementation. The goal is to add a new utility function that integrates with the DOM library.

由索引模型根據 Issue 內容生成。