A focus-channel deep-link sets (and persists) the channel-name column filter
via the DataTable's externalFilter. That persisted value then survived into
unrelated visits: clicking the header's "N without full history" link landed
on the right tab with the right status chip, but a leftover name filter (e.g.
a channel focused in a past session) hid every row — "No channels".
Add a resetFiltersToken to DataTable that clears its column filters when it
advances, and bump it from the header intent. The token's ref starts at 0 so
the clear fires even when the table remounts on navigation, while a plain
reload (token still 0) keeps the user's persisted filters.