Enhancement: Update web to v7.1.2

Tags: web

We updated ownCloud Web to v7.1.2. Please refer to the changelog (linked) for details on the web release.

## Summary
* Bugfix [owncloud/web#9833](https://github.com/owncloud/web/pull/9833): Resolving external URLs
* Bugfix [owncloud/web#9868](https://github.com/owncloud/web/pull/9868): Respect "details"-query on private links
* Bugfix [owncloud/web#9913](https://github.com/owncloud/web/pull/9913): Private link resolving via share jail ID

https://github.com/owncloud/ocis/pull/7798
https://github.com/owncloud/web/releases/tag/v7.1.2
