Ability to hide/collapse completed items in todo lists

Problem I'm running a self-hosted Outline instance as a team wiki and knowledge base. We heavily use todo/checklist lists in our documents — for project tracking, meeting action items, and ongoing operational checklists. Over time, completed items pile up and make it increasingly hard to see what's still open. Especially in long-running documents (e.g., a recurring meeting notes page or a project checklist that lives for weeks), the signal-to-noise ratio drops significantly. I often find myself scrolling past dozens of checked items just to find the two or three that still need attention. Proposed Solution Add the ability to hide or collapse completed (checked) items in todo lists. Possible implementations: Toggle per checklist: A small clickable element (e.g., "Hide completed" / "Show 5 completed items") that appears near a todo list when it contains checked items. This would be my preferred approach as it gives the most granular control. Documen…