Investigate warning when build-storybook

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asset size limit: The following asset(s) exceed the recommended size limit (244 KiB). WARN This can impact web performance. WARN Assets: WARN vendors~main.97dd28042f064fdff6b6.bundle.js (1000 KiB) WARN entrypoint size limit: The following entrypoint(s) combined asset size exceeds the recommended limit (244 KiB). This can impact web performance. WARN Entrypoints: WARN main (1.08 MiB) WARN runtime~main.97dd28042f064fdff6b6.bundle.js WARN vendors~main.97dd28042f064fdff6b6.bundle.js WARN main.97dd28042f064fdff6b6.bundle.js WARN WARN webpack performance recommendations: WARN You can limit the size of your bundles by using import() or require.ensure to lazy load some parts of your application. WARN For more info visit https://webpack.js.org/guides/code-splitting/

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We are now using default webpack config from storybook: it is possible to make an improvement from our project?