feat: add configurable wind units

types/notifications.ts

@@ -1,5 +1,6 @@
 import type { Language } from "@/lib/i18n";
 import type { Province } from "@/types/province";
+import type { WindSpeedUnit } from "@/types/units";
 
 export interface PushSubscriptionKeys {
   p256dh: string;
@@ -24,6 +25,7 @@ export interface WarningPushSubscription {
   longitude: number | null;
   locationName: string | null;
   countyTeryt: string | null;
+  windSpeedUnit: WindSpeedUnit;
   createdAt: string;
   updatedAt: string;
 }