Filter for changeset state (open / closed)

[Discostu36]

I'm submitting a feature request

Brief Description

I'd like the filter to have an option to only show closed or open changesets.

What is the motivation / use case for this feature?

I'd like to hide open changesets because it is not possible to comment on them and their content might change in the future.

Other Information / context:

The filter would need to look for the "open=true/false" attribute in the changeset tag: <changeset id="148539699" created_at="2024-03-12T09:26:30Z" closed_at="2024-03-12T09:26:31Z" open="false" user="sispa" uid="21107074" min_lat="39.0711465" min_lon="8.9852986" max_lat="39.0737522" max_lon="8.9878370" comments_count="0" changes_count="4">