improvement: updated toasts. no invisible toast anymore.

frontend/src/components/ui/appointments/AppointmentsPage.tsx

@@ -17,7 +17,6 @@ import { AppointmentScheduleGrid } from '@/components/ui/appointments/Appointmen
 import { AppointmentsPatientSearch } from '@/components/ui/appointments/AppointmentsPatientSearch';
 import { AppointmentScheduleLegend } from '@/components/ui/appointments/AppointmentScheduleLegend';
 import { ScheduleDayPicker } from '@/components/ui/shared/ScheduleDayPicker';
-import { ToastStack } from '@/components/ui/shared/Toast';
 import { useToast } from '@/lib/hooks/useToast';
 import type { AppointmentPurpose } from '@/types/appointment';
 import { getUserFacingError } from '@/components/shared/formatApiError';
@@ -286,8 +285,6 @@ export function AppointmentsPage() {
         <p className="text-sm text-text-secondary">{t('subtitle')}</p>
       </div>
 
-      <ToastStack {...toast.messages} />
-
       <div className="grid grid-cols-1 xl:grid-cols-3 gap-6">
         <div className="xl:col-span-1 space-y-4">
           <AppointmentsPatientSearch