Upgrade to Storybook 8.1.3

[jstruthers-mimacom]

Note: the tutorial will be out of date after this merge, updates will be needed for:

• the included storybook libraries (also rollup is now a dev dependency, although obviously that's not a big deal)
• .storybook/main.js needs to be updated
• .storybook/preview.js needs to be added
• the commands to start storybook have changed
• rollup.config.js needs to be renamed to .mjs