Rely on post-edit and term-edit instead of post-scraper and term-scraper

[omarreiss]

Summary

This PR can be summarized in the following changelog entry:

• Compatibility with Yoast SEO 14.2 JavaScript changes. We used to depend on JavaScript files which aren't there anymore. We now depend on post-edit.js or term-edit.js.

Test instructions

This PR can be tested by following these steps:

• In https://github.com/Yoast/wordpress-seo/pull/15083, Yoast SEO consolidates to less JavaScript files per screen.
• Checkout the script-data branch on Yoast SEO or trunk if the PR is merged already.
• See the current stable of Yoast ACF doesn't load its JavaScript anymore.
• Checkout this PR. See it works again.

[maartenleenders]

Acceptance 🚧 Getting this error

yoast-acf-analysis.js?ver=2.3.0:422 Uncaught ReferenceError: YoastReplaceVarPlugin is not defined
    at Object.10../config/config.js (yoast-acf-analysis.js?ver=2.3.0:422)
    at o (yoast-acf-analysis.js?ver=2.3.0:1)
    at yoast-acf-analysis.js?ver=2.3.0:1
    at Object.1../collect/collect.js (yoast-acf-analysis.js?ver=2.3.0:6)
    at o (yoast-acf-analysis.js?ver=2.3.0:1)
    at yoast-acf-analysis.js?ver=2.3.0:1
    at Object.9../app.js (yoast-acf-analysis.js?ver=2.3.0:407)
    at o (yoast-acf-analysis.js?ver=2.3.0:1)
    at r (yoast-acf-analysis.js?ver=2.3.0:1)
    at yoast-acf-analysis.js?ver=2.3.0:1

...on post-edits and term-edits. YoastReplaceVarPlugin is expected to exist on line 5 of js/src/replacevars.js.

I tried pointing to YoastSEO.wp.replaceVarsPlugin directly (which is where we expose the plugin in post-scraper, but that object doesn't have the ReplaceVar object, that the YoastReplaceVarPlugin that was set on the window used to have.

[maartenleenders]

Acceptance 👍 ✅ :warning: Don’t merge until feature/social-metadata-previews-reactification is merged into trunk on wordpress-seo. :warning: