Bugfix: Spaces reactivity on update

We've fixed a bug where updated data for a space would not show up in the UI before reloading.

https://github.com/owncloud/web/issues/7521
https://github.com/owncloud/web/issues/7782
https://github.com/owncloud/web/pull/7546
https://github.com/owncloud/web/pull/7818
