Make Forum "Older Posts" Collapsible

Please make the “Older Posts” section collapsible, with an option to keep it collapsed by default.

We have hundreds, if not thousands, of forum posts on our server, which makes finding and focusing on active posts challenging. The “Older Posts” section is currently displayed in a tiny font, making it easy to miss when scrolling through the forum.

Suggestions:
- Make the “Older Posts” section collapsible, with an option to keep it collapsed by default, OR
- Increase the font size of the “Older Posts” section significantly to make it more noticeable and easier to find.
- If possible, consider renaming “Older Posts” to “Archived” since this section includes **Closed** and inactive posts.