docs(examples): add Remix example with routing, theming, and data fetching

[mkska]

Pull Request Checklist

• Reviewed the Contributing Guidelines
  • Especially the How to Contribute section
• Correct commit message style

Description

https://remix.run example using ui5-webcomponents-react.
The hydration problems are managed through remix-island package.
Has the same look-and-feel as the nextjs-app example.
Closes #5050.

[cla-assistant]

All committers have signed the CLA.

[coveralls]

Pull Request Test Coverage Report for Build 9203468206

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Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 88.49%

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Totals
Change from base Build 9203002424:	0.0%
Covered Lines:	5420
Relevant Lines:	6125

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💛 - Coveralls

[MarcusNotheis]

Thanks for your contribution, @mkska! 🎉
I've added some minor adjustments to the readme to be better aligned with our other examples, and added the link to your example in our storybook.