fix race condition on game page load

[ornicar]

try to load game state and socket version atomically; or find a workaround

[onefuncman]

I got told to grep for SocketVersion for pointers on where to find this, as it’s suspected to be a race condition per Discord #support

I ran into this issue on Lichess TV while observing a game. If there is a page load on game transition, maybe we can consolidate the transport to entirely websockets instead?