Bump to @nextcloud/vue@6.0.0-beta.3

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

src/components/AttachmentDragAndDrop.vue

@@ -41,7 +41,7 @@
 			</div>
 		</transition>
 
-		<Modal v-if="modalShow" :title="t('deck', 'File already exists')" @close="modalShow=false">
+		<NcModal v-if="modalShow" :title="t('deck', 'File already exists')" @close="modalShow=false">
 			<div class="modal__content">
 				<h2>{{ t('deck', 'File already exists') }}</h2>
 				<p>
@@ -57,12 +57,12 @@
 					{{ t('deck', 'Keep existing file') }}
 				</button>
 			</div>
-		</Modal>
+		</NcModal>
 	</div>
 </template>
 
 <script>
-import { Modal } from '@nextcloud/vue'
+import { NcModal } from '@nextcloud/vue'
 import attachmentUpload from '../mixins/attachmentUpload'
 import { loadState } from '@nextcloud/initial-state'
 
@@ -75,7 +75,7 @@ try {
 
 export default {
 	name: 'AttachmentDragAndDrop',
-	components: { Modal },
+	components: { NcModal },
 	mixins: [attachmentUpload],
 	props: {
 		cardId: {