Friend-to-Friend connections

[desyncr]

Support exchanging noderefs through QR or similar.

https://freenet.mantishub.io/view.php?id=1343

ArneBab: desyncr: a next step for spreading would be to share the app via NFC: https://android.stackexchange.com/questions/39218/sending-an-application-apk-through-nfc
ArneBab: That way you with smartphone could just tell a friend "let’s connect" and tap the phones together. After startup the app of your friend could ask to tap once more to connect.

• MDNSDiscovery
• Make F2F first-class in Freenet UI: See https://www.reddit.com/r/Freenet/comments/lblvdq/how_would_you_improve_freenet/gm2yrxs/