Adds changes to the applies_to page

[charlotte-hoblik]

Preview: https://docs-v3-preview.elastic.dev/elastic/docs-builder/pull/1325/syntax/applies

Update applies_to page to match new versioning guidelines. Removed outdated parts and added missing info.

[leemthompo]

Thanks @charlotte-hoblik your changes about the updates look great, I just think we should take the opportunity to improve the overall structure of the page now that the information is more mature. I didn't give this a 100% thorough review, but should be enough to build upon your work.

[leemthompo]

@charlotte-hoblik I think we could improve the flow in the Syntax section, namely by moving lifecycle up higher:

• Basic pattern
• Life cycle
• Version
• Combined states

[charlotte-hoblik]

Thank you, @leemthompo for the helpful feedback and suggestions!
Heads-up: the examples are still a work in progress, with more updates coming.

[florent-leborgne]

Thank you thank you @charlotte-hoblik
Your changes already make this page so much better. 🙇

I'm leaving some comments that are mostly small clarifications or suggestions to add more overall context to the core purpose of these applies_to tag.

[charlotte-hoblik]

Thanks so much for your review @florent-leborgne. I’ve applied your suggestions, really appreciate your help!