Fix the standalone window behaviour

[Mark2Mark]

When swithing to another app, the window sticks in front. Some users requested this, but for other users it is annoying.

• [ ] Make it an optional setting or drop the persistance again.

[Mark2Mark]

This window issue is fixed now. Actually I added an option, because I have made that deliberately before due to other user’s requests. The problem is, that without it, the window hides every time Glyphs looses focus. That seems to be annoying on a multiple -screen setup.

So now there is a new menu item ”Always on Top (Good for Second Monitor)” which you can use to toggle it to your needs.