Redundant websites on Showcase/Projects with Nuxt

[seahken]

Many of the links in https://github.com/ansidev/awesome-nuxt/blob/main/content/resources/projects-using-nuxt.md and https://github.com/ansidev/awesome-nuxt/blob/main/content/resources/showcase.md are no longer online, some are even being redirected to spam/phishing sites. We should clean this up for better usability.

[ansidev]

@seahken I know that. It's a good idea. However, I don't have time for this project since it's just a pet project. On the other hand, I always welcome ideas and PRs. IMO, we have two options:

1. Check and remove links manually, it works but obviously, it is not a good solution.
2. Use/write a health check tool to detect and remove invalid/dead links regularly.

• The basic idea is: Sites that do not return a valid HTTP status code (to be defined) will be removed.