upgrade dependencies

[jpdriver]

• upgrades Storybook
  • to fix critical vulnerabilities in immer (CVE-2021-3757, CVE-2021-23436)
  • (immer has been removed from the dependency tree as part of this upgrade)
• upgrades ESLint and Prettier
  • to fix critical vulnerabilities in eslint-utils (GHSA-3gx7-xhv7-5mx3)
  • also removes eslint-config-prettier in favour of eslint-plugin-prettier
  • add ESLint rule for prettier/prettier
  • various style updates throughout the codebase
• upgrades demo site to Next 12
  • to fix various vulnerabilities in next (GHSA-25mp-g6fv-mqxx, GHSA-9gr3-7897-pp7m, GHSA-vxf5-wxwp-m7g9)