Design optimizations and MacOS Menubar suggestion

I noticed that NC is showing a checkmark in the menubar to signal it is synced. I would recommend using the NC Logo and when it syncs it changes to have a little circle icon on the top right. This right now looks really ugly.

There should be some more modernizations in the settings and for other icons as well.
A stable product is not everything! I really like NextCloud but it feels old.

I don't know where the focus on NC-Team is, but for me, a good designed and well-thinked client for PC's and Smartphones are more important than a web client.