Add button to copy app version to make bug reports easier

[Greenheart]

What brings you here and how are you?

What if the app version could be copied more easily? For example with a button to "copy version info" which gets a string like "Version 2.25.0-v1279/P@028f3373"

Up until now, copying the version number can only happen when checking for a new app version. So it's tricky to get the timing right.