Fix broken links

[luisorbaiceta]

Due to some reports about broken links, I'm opening this PR to detect all the edge cases that were not covered by the previous website and fix current reports.

Broken Links list:

• website

• website

• Missing encapsulation svg

• website

• docs: needs to be fixed in fastify/fastify

• web: needs to be fixed in fastify/website

Checklist

• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[luisorbaiceta]

@jsumners seems that previous links like /docs/foo/bar were 404s in the previous website too due to wrong version remapping. I'll do my best to find any possible missing edge case or link type but would really appreciate a hand on this. There are SOO many link types

[jsumners]

There are SOO many link types

I refer you back to my original comment -- fastify/fastify#3474 (comment)

I'm really not happy with the current way our site is generated. It was a really valiant effort to keep as many versions as possible on the site, but it doesn't scale and is very unmaintainable.

[luisorbaiceta]

Agree, however my concern will be to try to fix this as I really don't know the status of new site.

[luisorbaiceta]

@jsumners please check the list above, I will document all the broken links

[luisorbaiceta]

Website links have been fix. I will migrate the fastify/fastify part to that repo and open a separate PR so we can keep track from there. Let's wait to merge this till I have fixed that so I can check that ALL the links are correct in dev.

[luisorbaiceta]

Every single link checked

[mcollina]

k lgtm

[jsumners]

Every single link checked