* Handle rx.State subclasses defined in function
* create a new container module: `reflex.istate.dynamic` to save references to
dynamically generated substates.
* for substates with `<locals>` in the name, copy these to the container module
and update the name to avoid duplication.
* add test for "poor man" ComponentState
Fix#4128
* test_state: disable local def handling for dupe-detection test
* Track the original module and name for type hint evaluation
Also use the original name when checking for the "mangled name" pattern when
doing undeclared Var assignment checking.
