Fix lint and E2E filter regression

Wrap long lines for Ruff and restore a single 'All' tag-reset link to avoid Playwright strict-mode collisions.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

apps/core/templatetags/core_tags.py

@@ -58,7 +58,9 @@ def get_categories_nav(context):
     index_page = index_qs.first()
     if not index_page:
         return []
-    categories = index_page.get_listing_context(request, active_category=None)["available_categories"].filter(show_in_nav=True)
+    categories = index_page.get_listing_context(
+        request, active_category=None
+    )["available_categories"].filter(show_in_nav=True)
     return [
         {
             "name": category.name,