message: refactor(app): adjust height to remove flash between instruction steps
  closes
diff: @@ -105,7 +105,7 @@ export function Instructions(props: Props): JSX.Element {
  <Flex
  paddingX={SPACING.spacing6}
  paddingTop={SPACING.spacing6}
  - height="100%"
  + height="14.5rem"
  >
  <InstructionStep
  diagram={stepPage === 0 ? 'screws' : 'tab'}
  @@ -161,8 +161,7 @@ export function Instructions(props: Props): JSX.Element {
  marginBottom={SPACING.spacing6}
  marginX={SPACING.spacing6}
  alignSelf={ALIGN_FLEX_END}
  - // spacing changes to keep buttons at same height across pages
  - marginTop={stepPage === 0 ? SPACING.spacing6 : '5.9rem'}
  + marginTop="5.9rem"
  >
  <Btn
  onClick={stepPage === 0 ? back : () => setStepPage(stepPage - 1)}
  