Client v0.0

This client is intended to be used in the alpha test of the ChecksMate randomizer.

• Fix an issue on first-time startup involving a crash on concurrent file reads.
• Fix an issue when placing many pawns for settings that exclude one type of pawn, where the setting would be ignored for pawns after the second rank (usually the first 8 pawns).
• Prevent invalid OptionSet generation for fairy_chess_pieces.
  • This is reflected in a bug report in core: https://discord.com/channels/731205301247803413/1180659103316586537/1180659103316586537
• Reintroduce the default "archipelago.gg:" text in the server field when no previous connection was recorded (e.g. on first-time startup).