Patch Notes: Sign-in queue

Signing in

• When many players sign in at once, such as right after an update, you now wait in a short line instead of getting a "server" error. The game tells you that you're in line; try again in a few seconds and you keep your place.

What's Changed

• ADMIT-LINE: a sign-in queue so a login wave cannot overload the account database by @Lattymoy in #766

Full Changelog: app-v0.1.7703...app-v0.1.7705