Signal cannot use microG's push service

[mihi]

For Molly if you want to use UP, this can help.

@irrlicht

Note: you will still need a proper QR-code for the MollySocket server for UP. This is the only method to specify the server’s address. If you don’t have any better QR-code, take this one .

You also have to activate Unifed push under Settings->System->UnifiedPush. Please check maybe beforehand that you have one of the latest e/OS/ versions which includes it.