Enhance PaidUntilBadge and UserManageDialog to display billing date

- Updated the PaidUntilBadge component to accept a new `showDate` prop, allowing it to display the billing date alongside the remaining days.
- Modified UserManageDialog and admin user management components to utilize the updated PaidUntilBadge, improving context for billing information.
- Added internationalization support for the new date format in both English and Russian.

frontend/src/shared/lib/i18n.ts

@@ -116,6 +116,7 @@ const resources = {
         minutesRemaining: '{{count}} мин',
         pendingReviewShort: 'На проверке',
         pendingReviewHint: 'Оплата отправлена на проверку администратору — доступ не будет приостановлен, пока заявка не решена.',
+        paidUntilWithRemaining: 'до {{date}} ({{remaining}})',
         newRequest: 'Оформить оплату',
         period: 'Период',
         periods: {
@@ -642,6 +643,7 @@ const resources = {
         minutesRemaining: '{{count}}m',
         pendingReviewShort: 'Under review',
         pendingReviewHint: 'Payment sent for admin review — access will not be suspended until the request is decided.',
+        paidUntilWithRemaining: 'until {{date}} ({{remaining}})',
         newRequest: 'Set up payment',
         period: 'Period',
         periods: {