[Feat]: Batch publish/make public

[SaschaValentin]

I´ve noticed there is no chance to batch publish an app with several pages or make them all public at once. This would be a handy feature. Maybe you could integrate something in the dropdown on "Your Apps" panel.
It is really time consuming and annoying when you have an app that consists of ten or more screens and you always have to open each of them to publish it or make it public accessible.
Would be really nice :-)