Some saga functions are hard to trace

We can find them with
- ```regex
  yield\* (?!(select|call|put|fork|all|take|delay|action|race))
  ```
  `yield* setStep(TransactionStep.Preview)` should use `yield* call(setStep`

- ```regex
  function\* \(
  ```
  `fork(function* () {` should have a function name
