[QA] files view collapses whitespace

[jnweiger]

Seen with web-1.0.2 in owncloud server 10.6.0

Follow the setup instructions at https://github.com/owncloud/QA/blob/master/Server/Test_Plan_web.md for http-only:

• visit Settings -> New Design
• • New -> New folder ...
    New Folder with two spaces in between.
• copy that folder name

• paste into an editor and count whitespaces. There is only a single whitespace in the name.

• when opening the rename dialog, we can see that actually there are two whitespaces:
  

Expected behaviour: file and folder names survive cop and paste without any changes.

[kulmann]

We tackled this rendering glitch in the new files list component in the design system. Currently integratnig it into ownCloud web. This issue will be fixed by #4627