Clearer changelog filters with totals, uncategorized entries, and empty states

On your public changelog, the filter row now starts with All, shows how many entries you have in total, and stays selected until someone picks a specific kind. That makes it obvious how to see everything again after narrowing the list.

If some published entries don’t have a kind, Uncategorized appears so those updates stay reachable while readers filter by New, Fix, Improvement, or Update.

When a chosen filter would hide every entry, the page says so in plain language instead of looking empty.