Remove deprecated global API calls

Signed-off-by: Julius Härtl <jus@bitgrid.net>

src/components/card/CardSidebar.vue

@@ -202,6 +202,7 @@ import MarkdownItTaskLists from 'markdown-it-task-lists'
 import { formatFileSize } from '@nextcloud/files'
 import relativeDate from '../../mixins/relativeDate'
 import AttachmentList from './AttachmentList'
+import { generateUrl } from '@nextcloud/router'
 
 const markdownIt = new MarkdownIt({
 	linkify: true,
@@ -279,7 +280,7 @@ export default {
 			}
 		},
 		attachmentUrl() {
-			return (attachment) => OC.generateUrl(`/apps/deck/cards/${attachment.cardId}/attachment/${attachment.id}`)
+			return (attachment) => generateUrl(`/apps/deck/cards/${attachment.cardId}/attachment/${attachment.id}`)
 		},
 		formattedFileSize() {
 			return (filesize) => formatFileSize(filesize)