Create a nice 404 page on the docs website

[mrsimonemms]

What is your feature idea?

Going to a broken link on https://docs.kubefirst.io returns the default nginx 404. We should create a nicer 404 page.

Why is it needed?

Looks sloppy.

Is this missing feature preventing you from using kubefirst?

• Yes

Code of Conduct

• I agree to follow this project's Code of Conduct

[jairoFernandez]

I'll close this issue, we allow the default 404 from docusaurus in the documentation, with this PR #715,

Thanks @mrsimonemms for your catch!

[fharper]

Thanks for the quick fix. I still think we could have a nice 404, but I'll need @donnalux to create us one, so I'll reopen this issue :)