Changelog: newest-first sorting and clearer entry display

Entries are now shown newest-first and read better — Changelog entries are now sorted by publication date (newest first) and each entry uses a clearer, structured layout with collapsible sections so you can scan recent changes and expand details as needed.

Sorted changelog entries by publication date in descending order so the most recent updates appear first.frontend
Updated entry layout to display dates and metadata more clearly and to use collapsible section accordions for structured content.frontend
Added an option to hide the inline date in entry metadata to support more compact displays.frontend
Updated markdown rendering to conditionally omit structured sections when appropriate, improving content presentation.frontend

Removed unnecessary client-side state management in the changelog feed for a simpler, more predictable experience.frontend