Add search box

[hyrodium]

This PR fixes #3.

Peek.2024-01-19.21-54.mp4

The files in _libs/lunr are copied from https://github.com/tlienart/Franklin.jl/tree/8c043252f61e0a6217fd9c873a5be66cac5a8f3a/docs/_libs/lunr.

Franklin.jl docs for search with Lunr: https://franklinjl.org/extras/lunr/

[KronosTheLate]

This looks perfect! You are really cleaning up this web page, awesome <3

I do not have any critisism on the look and functionaly, so this is ready to go whenever you feel like it is ^_^

[hyrodium]

One problem is searching with a term in the sidebar. For example, the result with 'graphs' shows all pages on the site. (x-ref: tlienart/Franklin.jl#1071)

This should be fixed in Franklin.jl, so it should be okay to merge this PR.

[hyrodium]

Another possible issue will be a CI failure.
We could have some CI checks or preview pages per PR, but let's merge this PR for now.

[hyrodium]

The result is not correct. I'll open another PR. 😂

https://juliapackagecomparisons.github.io/search/index.html?q=Makie.jl

[hyrodium]

Fixed!

[KronosTheLate]

One problem is searching with a term in the sidebar. For example, the result with 'graphs' shows all pages on the site.

That is indeed very unfortunate. Great that you opened an issue in the appropriate place (Y)