fix: remove unused currentLocale variable in LocationCard

Remove unused import to resolve TypeScript warning [6133]

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

web-app/app/ui/LocationCard.tsx

@@ -30,7 +30,6 @@ export const LocationCard: FC<LocationCardProps> = ({ location, currency }) => {
     } = location;
 
     const t = useTranslations("home-page.location-card");
-    const currentLocale = useLocale();
 
     // sum all the unpaid and paid bill amounts (regardless of who pays)
     const totalUnpaid = bills.reduce((acc, bill) => !bill.paid ? acc + (bill.payedAmount ?? 0) : acc, 0);