rm unused urlparam

src/routes/weather/week/[location]/+page.svelte

@@ -18,7 +18,7 @@
 	import { formatZoned } from '$lib/utils/date';
 	import { daySwap, runDayTransition } from '$lib/utils/day-swap';
 	import { buildLocationRoute } from '$lib/utils/location';
-	import { syncSearchParams } from '$lib/utils/url-state';
+	import { syncSearchParams, unlessDefault } from '$lib/utils/url-state';
 
 	import { ChartContainer } from '$lib/components/charts';
 
@@ -269,7 +269,7 @@
 			: false;
 		syncSearchParams(get(page).url, {
 			day: isToday ? null : dayKey,
-			model: model && model !== 'best_match' ? model : null
+			model: unlessDefault(model, 'best_match')
 		});
 	});