refactor(app): unify settings tab design for tags, templates & crowd types

Move crowd types management to organisation settings as a new tab and
align all three settings tabs (Tags, Registration Field Templates, Crowd
Types) to the same layout pattern: header with title/subtitle, VDataTable
for active items, and a separate inactive section with VList. Also fix
the API to return inactive records for person tags and registration field
templates so the frontend can display them.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/app/Http/Controllers/Api/V1/PersonTagController.php

@@ -20,7 +20,7 @@ final class PersonTagController extends Controller
     {
         Gate::authorize('viewAny', [PersonTag::class, $organisation]);
 
-        $tags = $organisation->personTags()->active()->ordered()->get();
+        $tags = $organisation->personTags()->ordered()->get();
 
         return PersonTagResource::collection($tags);
     }

api/app/Services/RegistrationFieldTemplateService.php

@@ -16,7 +16,6 @@ final class RegistrationFieldTemplateService
     public function listForOrganisation(Organisation $organisation): Collection
     {
         return $organisation->registrationFieldTemplates()
-            ->active()
             ->ordered()
             ->get();
     }