List number of completed puzzles in collection

[luxaritas]

Describe your idea

When viewing a collection, it would be nice to see how many of the puzzles have been solved

Motivation

When viewing a collection, you can already see the number of total puzzles. Adding the number you have solved would allow for easier gauging of how close to completing the collection you are. In particular for the Eterna100 badge, this would also allow for a specific indication of how close to the next badge you are

Proposed Solution

Maybe change the area of the sidebar which lists the puzzle count to include both completed and total? Eg "50/100". Otherwise probably a new entry in that list for "cleared"

Other Information

No response