title	issue
Enable the editing of promotions in existing orders	NEXT-13002

Core

Changed const \Shopware\Core\Checkout\Cart\Order\OrderConverter::ADMIN_EDIT_ORDER_PERMISSIONS to public
Added methods addPromotionLineItem and toggleAutomaticPromotion in \Shopware\Core\Checkout\Cart\Order\RecalculationService

API

Added new routes /api/_action/order/{orderId}/promotion-item and /api/_action/order/{orderId}/toggleAutomaticPromotions

Added blocks sw_order_detail_base_line_items_switch_promotions and sw_order_detail_base_line_items_voucher_field in src/module/sw-order/view/sw-order-detail-base/sw-order-detail-base.html.twig
Added following methods to component sw-order-detail-base
- deleteAutomaticPromotion
- toggleAutomaticPromotions
- handlePromotionCodeTags
- onSubmitCode
- handlePromotionResponse
- onRemoveExistingCode
- getLineItemByPromotionCode
- updatePromotionList
Added following computed properties to component sw-order-detail-base
- orderLineItemRepository
- disabledAutoPromotionVisibility
- hasLineItem
- currency
- promotionCodeLineItems
- hasAutomaticPromotions
- promotionCodeTags
Added watcher order.lineItems to component sw-order-detail-base
Added mixin notification to component sw-order-detail-base
Added snippet sw-order.detailBase.textPromotionRemoved
Added methods addPromotionToOrder and toggleAutomaticPromotions to order.api.service