Had a warning on storybook before (See below). Fixed by removing the unnecessary default theme config. Change defaultViewport: DEFAULT_VIEWPORT, to ...DEFAULT_VIEWPORT, would also fixed the problem, but responsive is the default value for defaultViewport so there's no need to set it again. Reference: https://storybook.js.org/docs/essentials/viewport
Change
defaultViewport: DEFAULT_VIEWPORT,to...DEFAULT_VIEWPORT,would also fixed the problem, butresponsiveis the default value fordefaultViewportso there's no need to set it again. Reference: https://storybook.js.org/docs/essentials/viewportBefore