Enhancement: Edit a space

A new edit space option has been added to the bottom sheet, available only to users
with the required permissions when the three-dot menu button is tapped.

https://github.com/owncloud/android/issues/4607
https://github.com/owncloud/android/issues/4688
https://github.com/owncloud/android/issues/4695
https://github.com/owncloud/android/pull/4687
https://github.com/owncloud/android/pull/4694
https://github.com/owncloud/android/pull/4713
