Added rotational CTA framework

[Nikhil-Ladha]

Signed-off-by: Nikhil-Ladha [email protected]

Description
Added the rotational CTA framework for MDX content.
Any MDX file can have these CTA's, explicit import is not required. Just
write the component that you want to have and it will render.

The bottom CTA is added to the MDXProvider, but for blogs it is
imported under the blog-single code, because of the position at which
we want the CTA to be present.

This PR fixes #2848

Signed commits

• Yes, I signed my commits.

[Nikhil-Ladha]

@leecalcote I have added the CTA's to one blog post for reference. If all looks good, signal here so that I will comment them out and update the code.

[l5io]

🚀 Preview for commit a5b0044 at: https://629e30f27ea53561cc69c5af--layer5.netlify.app

[Nikhil-Ladha]

Ref blog post: https://629e30f27ea53561cc69c5af--layer5.netlify.app/blog/envoy/debug-envoy-proxy

[leecalcote]

The CTA button doesn't seem to want to do what it's told (just like my second son).

.

[l5io]

🚀 Preview for commit 28451c0 at: https://62a14243bd26d124a2e87815--layer5.netlify.app

[Nikhil-Ladha]

Done with responsiveness.
I think the rest looks good, and the CTA's can be removed and PR merged?

[l5io]

🚀 Preview for commit 3adb70b at: https://62a226f9af3a650443968c72--layer5.netlify.app

[Nikhil-Ladha]

Considering, that we are good with this.....merging the PR.

[l5io]

🚀 Preview for commit 6df6046 at: https://62a6d1c0552b2d6b5c719416--layer5.netlify.app

[Nikhil-Ladha]

@leecalcote added support for categorizing CTA's, using a category prop.
And, for convenience, I have also added a sweet little README for anyone wondering how to use it.

[l5io]

🚀 Preview for commit 587cb84 at: https://62a759ce21ada505f8c3041d--layer5.netlify.app