Ways to make the screenshots nicer

Looking through the screenshots they are unfortunately a bit bland, not very tweetable (good test for that):

Some suggestions:

• The biggest issue is that all the elements are very small. We need to zoom in on screenshots. When you are on 1920*1080 for example it’s a good idea to zoom in to 150 %
• The files and folders should have more realistic names, and especially not all short ones.
• Some files / folders should be favorited to show they are listed up top
• Ideally we have some script which fakes the dates to not all be "1 hour ago"
• When we show the sharing sidebar, it should be filled with other people the file was shared with
• When we show the Activity, it should have some recent activity of varied types: shares, comments, changes
• More ideas? I know some of these things are more difficult to do, but we can always keep them in mind. :)

cc @nextcloud/website @jospoortvliet @MariusBluem what do you think?

Start with the referenced Files Sharing.png screenshot and compare it with the repository’s existing screenshots. Define a focused set of visual changes from the listed suggestions, and consider the work complete when the selected screenshots visibly address the agreed improvements.