Fix syntax in TransferOwnershipDialogue.vue

Introduced with 6e5191b when migrating to Nextcloud router v2.0.0.

Signed-off-by: MichaIng <micha@dietpi.com>
Signed-off-by: nextcloud-command <nextcloud-command@users.noreply.github.com>

apps/files/src/components/TransferOwnershipDialogue.vue

@@ -197,7 +197,7 @@ export default {
 			}
 			logger.debug('submit transfer ownership form', data)
 
-			const url = generateOcsUrl('apps/files/api/v1//transferownership')
+			const url = generateOcsUrl('apps/files/api/v1/transferownership')
 
 			axios.post(url, data)
 				.then(resp => resp.data)