fix: confirm modal — always use admin-btn-primary (admin-btn-danger has no CSS)

src/admin/components/ConfirmModal.tsx

@@ -40,7 +40,7 @@ export default function ConfirmModal({ isOpen, onClose, onConfirm, title, messag
             </div>
             <div className="admin-modal-footer">
               <button type="button" onClick={onClose} className="admin-btn admin-btn-secondary" disabled={loading}>{cancelText}</button>
-              <button type="button" onClick={onConfirm} className={`admin-btn ${(confirmVariant === 'danger' || type === 'danger') ? 'admin-btn-danger' : 'admin-btn-primary'}`} disabled={loading}>
+              <button type="button" onClick={onConfirm} className="admin-btn admin-btn-primary" disabled={loading}>
                 {loading ? 'Zpracování...' : confirmText}
               </button>
             </div>