- reduce the duplication by moving the controllers (1 per type) to the
toplevel stores
- make sure the internal properties stay in sync between save/load now
that we have just 1 common controller
- fix navigating to the Hidden section from the toast
- finish impl of hiding the token from FirstTokenReceivedPopup
put the respective controller instances into WalletAssetsStore and
CollectiblesStore, so that they can be accessed from other places, like
the SendModal or some popups
Iterates #13293