chore: Use Nuxt3 offical starter instead of sidebase/merino

[zoey-kaiser]

This PR:

• Removes the dependency on https://github.com/sidebase/merino to bootstrap the project template
• Switches over to getting the official https://github.com/nuxt/starter to create the base project
  • This will keep create-sidebase up to date on Nuxt versions
  • Issue: Nuxt may update this template and break some of the packages we use. We may have to lock which version is pulled to ensure we can test the updates before it gets released!
  • We may switch back to using https://sidebase/merino, but without making any changes to it. Then we can always merge into our branch to keep it up to date with the official starter!
• Added antfu ESLint config and oxlint as the provided default linters
• Reorganized steps to create template
  • Makes adding files and packages more generic and less bound to the modules
• Make this project itself use antfu eslint and swich from npm to pnpm

Checklist:

• [X] issue number linked above after pound (#)
  • replace "Closes " with "Contributes to" or other if this PR does not close the issue
• [X] manually checked my feature / checking not applicable
• [X] wrote tests / testing not applicable
• [X] attached screenshots / screenshot not applicable