Improving UI fot the FAQ page

[cuevaio]

1. Changed the markup of the faq's

This way the faq's are collapsible.
This is native Markdown. No libreries used.

Input:

<details>
    <summary>
        Question
    </summary>
        Answer
</details>

Output:

Question

Answer

2. Changed the sidebar item for FAQ

3. Changed styles to match the color palette

Default pallete for collapsible items on docusaurus don't match ours.

Results

[github-actions]

❌ pre-commit failed.
Please run pre-commit run --all-files locally and commit the changes.
Find more information in the repository's CONTRIBUTING.md

[andrewm4894]

Looks great!

[andrewm4894]

Maybe see if you can get pre-commit running locally, looks like it want to reformat a little the css and js files maybe.