Update text and images for inline markdown

[alaudazzi]

This PR updates the page https://www.elastic.co/docs/explore-analyze/visualize/text-panels to reflect the new Inline markdown editor.

Relates to elastic/kibana#229191
Closes #3076

[alaudazzi]

@mbondyra I'm still figuring out how to refresh these screenshots

[github-actions]

🔍 Preview links for changed docs

• explore-analyze/visualize/text-panels.md

[florent-leborgne]

@alaudazzi these changes seem to reflect versions 9.2+ and serverless, while 9.0 and 9.1 users still have the previous experience for this panel. This needs to be reflected in these docs and 9.0/9.1 users must still find the old version of it.

I suggest using tabs (with the applies-switch component) to distinguish between the old and new experience for this panel

[florent-leborgne]

These markup edits should help

[mbondyra]

LGTM 👌🏼 I think I'd make the screenshots maybe a bit bigger to encapsulate the whole area of markdown, without cutting the buttons, but it's a nit!

[alaudazzi]

@florent can you have a final look?

[florent-leborgne]

Nice, we're nearly there. Just a couple of last comments to:

• order tabs from latest to oldest
• specify which tab corresponds to the serverless UI too

[alaudazzi]

@florent-leborgne

specify which tab corresponds to the serverless UI too

The full page applies to serverless, with no exception for the refreshed UI.

[florent-leborgne]

LGTM!