message: refactor(protocol-designer): add selectors for e2e tests
  Add SubstepRow_aspirateWell, SubstepRow_volume, and SubstepRow_dispenseWell data-test attrs
  Add StepSelectionBannerComponent_numberStepsSelected id
diff: @@ -108,6 +108,7 @@ export const StepSelectionBannerComponent = (
  marginLeft="0.5rem"
  fontWeight={FONT_WEIGHT_SEMIBOLD}
  textTransform={TEXT_TRANSFORM_UPPERCASE}
  + id="StepSelectionBannerComponent_numberStepsSelected"
  >
  {i18n.t('application.n_steps_selected', { n: numSteps })}
  </Text>
  