Allow selection of Realm from login screen

When logging into Nightingale, please allow a drop down with unlocked realms - and a toggle to force it to "your original" zone, similar to the "to your original crossroads" button on the map.

When we're logging in, we'll log in to the last realm we're in - for single player, that's great, but for multiplayer - that could be someone else's quest realm. And the issue with that is you could potentially break that other players' ability to progress right now. While I'm hopeful the latter issue will be resolved...

It still would remain the fact that we're logging into someone else's realm, using a teleport / load to another realm to get to our own abeyance, then opening a portal to go to the realm we're actually wanting to play in. And so you're spinning up three zones, for that case, and we're sitting through the portal open sequence for that - when you could just load us into the one we're wanting to work on in the first place.

This is definitely a quality of life thing, but could also have lowered cost of operation, etc. depending on how you handle this right now - e.g. if you're paying AWS or Azure or whoever to spin up a container / VM each time, or have a pool of "ready to go" machines with an elastic capabiltiy or w/e - this might both lower the number of devices you need and your overall bill, while also making it nicer for players - they end up where they want to be in the first place.