Add Settings to Dock Icon

[niklasr22]

Some status bars are so full that the BrightIntosh icon is not shown.
In that case the settings window and "quit" option should still be accessible through dock icon menu entries.

[niklasr22]

https://zenn.dev/usagimaru/articles/fe8f91298d2bc6 DockTilePlugIns are not an option as the Mac App Store seems to decline apps using this.
Maybe https://stackoverflow.com/questions/12897214/transform-lsuielement-to-foreground-application works