updateState
Obtain the current StateProvider.state and update it with the result of transform.
This function will suspend until all previous withState or updateState invocations are finished if StoreConfiguration.atomicStateUpdates is enabled
This function is reentrant, for more info, see withState
If you want to operate on a state of particular subtype, use the typed version of this function.
If you wish to ignore plugins and thread-safety of state updates in favor of greater performance, see updateStateImmediate