Add examples to the website, or make examples more discoverable

[jasonwilliams]

It would be good to share the examples we have in https://github.com/boa-dev/boa/tree/main/examples onto the website. This would be so people new to Boa could instantly see how it works and how to use it. The discovery of examples at the moment isn't the best although you can eventually find it via the Boa API link.

We could start off with having a top link to "examples" in the nav bar which links to https://docs.rs/boa_engine/latest/boa_engine/

Then maybe some way to show the source code on the website with some output in the console which you can run.

[mdimado]

I'd like to contribute to this issue! I'm new to the project, so I have a few questions to help me get started:

1. Where can I find the code for the website's navigation bar to add a link to "examples"?
2. Do you have a preferred framework or library for embedding runnable examples and displaying console output?
3. Are there specific examples from the Boa repository that you'd like to prioritize for this feature?

I'd appreciate any guidance or tips to ensure I align with the project's conventions. Thanks!