Add version label

[fsciuti]

I suggest adding a version label next to the title.

[fathorMB]

Should be next to the title in the application header on in the browser title bar? Or in both?

[fsciuti]

I think the app's header is the right position!
Thank you so much @fathorMB ;)

[fathorMB]

Thanks to you for such fast reply! I'll submit a pull request soon ;)