LocalUserStatisticsProvider
This also throws away the logic of updating `API.LocalUser.Value.Statistics`. Components should rely on `LocalUserStatisticsProvider` instead for proper behaviour and ability to update on statistics updates.
As reported in https://discord.com/channels/188630481301012481/1097318920991559880/1288160137286258799.
Solo
{Solo -> User}StatisticsWatcher
The "solo" prefix is a bit unbecoming now. The updates are not only for solo.