Contentbrowser: Improvements for deep folder structures

[krissik]

We have very deep folder structures and it is not so easy to go back to a higher level if you have selected a deep level because the higher level moved out of view.

At the screenshot I have to select folder "three" to see folder "one" and "two" again. Here a horizontal scrollbar could be helpful or something like a close button to close a level and move view back to higher level, e.g. close folder "seven" than "one" and "two" were visible again.

[petschki]

fixed in mockup=5.2.0-beta.4 ... checkout upcoming release plone/plone.staticresources#367

[petschki]

released: https://pypi.org/project/plone.staticresources/2.2.0b4/