* Refactor swaps:
* Remove references to bity fallback, it aint happening
* Consolidate sagas to single orchestrator function like other sagas
* Grab rates once, dont continuously poll
* tscheck
* Re-instate the auto-fetching behavior. This time, only notify the first time.
* Make CurrentRates responsible for redux actions. Fix up some typings.
* Remove commented code.
* Update snapshot.
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