Interactivity API docs: Fix WP version, update new store docs

[cbravobernal]

What?

Update docs, mentioning that the Interactivity is included in Core in 6.5.
Update the docs with the replacement of the wp_store function to wp_interactivity_state.

[github-actions]

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Co-authored-by: c4rl0sbr4v0 <cbravobernal@git.wordpress.org>
Co-authored-by: SantosGuillamot <santosguillamot@git.wordpress.org>

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[github-actions]

Flaky tests detected in 9ac38d4.
Some tests passed with failed attempts. The failures may not be related to this commit but are still reported for visibility. See the documentation for more information.

🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/7974168585
📝 Reported issues:

• [Flaky Test] default to a list of pages if there are no menus #47732 in /test/e2e/specs/editor/blocks/navigation.spec.js

[SantosGuillamot]

Looks great 🙂 I just left a couple of small comments.

[SantosGuillamot]

I believe we can just remove this note.

[SantosGuillamot]

Suggested change

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