message: feat(protocol-designer): collapse all step items on newly loaded file
  Closes
diff: @@ -159,6 +159,12 @@ const collapsedSteps: Reducer<CollapsedStepsState, *> = handleActions({
  ...state,
  [payload]: !state[payload],
  }),
  + LOAD_FILE: (state: CollapsedStepsState, action: LoadFileAction) =>
  + // default all steps to collapsed
  + getPDMetadata(action.payload).orderedSteps.reduce(
  + (acc: CollapsedStepsState, stepId) => ({...acc, [stepId]: true}),
  + {}
  + ),
  }, {})
  export type OrderedStepsState = Array<StepIdType>
  