feat(display): improve regulation frontend display format and meta data rendering

[zhenhuang-tw]

This PR improves the frontend output format of the regulation sync plugin to align with the present display requirements of the website.

Changes

1. Fix Missing Meta Info: Combined and rendered modifiedType and modifiedDate correctly, pushing them into the output array.
2. Update Title & Meta Format: Changed the wrapper for the regulation title from <h2> to <p><strong> and applied a specific paragraph format for the meta information (<p><strong>{type}日期：</strong>{date}</p>).
3. Fix History List Styling: Replaced the unordered list (<ul>) with an ordered list (<ol>) for the regulation history section.

How to Test

1. Apply this branch's version of the plugin in the WordPress admin panel.
2. Trigger the regulation data sync.
3. Check the frontend regulation page and verify that the title is displayed correctly along with the last modified date format below it.
4. Confirm that the history section at the bottom displays a numbered list (1, 2, 3...).