The "Filters N active" badge and Clear all only tracked the sidebar facets
(tags/show/sort/content/date/channel), so the toolbar-level Source and the
Mine/Library scope neither bumped the count nor reset — inconsistent with
filtersToParams (which treats them as filters, so Save view/Share already
captured them).
- activeCount now includes Library scope and a non-default Source; "relevance"
(auto-applied while searching, no manual option) is excluded from the sort
count so typing a query no longer inflates the badge.
- Clear all resets scope back to "my" (Mine) and drops Source to organic,
alongside the facets. The search q is intentionally preserved.
- The header search box gets a clear (X) button when it holds a value, so the
search has its own reset (clearing it reverts the relevance sort to newest).