trackers: group cars, trains, planes and wildlife under one spotting tracker with /trackers/spotting landing page and category switcher

src/routes/sitemap.xml/+server.ts

@@ -14,6 +14,7 @@ const staticPaths = [
 	'/blog',
 	'/lists',
 	'/trackers/books',
+	'/trackers/spotting',
 	'/trackers/cars',
 	'/trackers/cars/brands',
 	'/trackers/planes',