Fix title breadcrumbs in WC 5.8

[tomalec]

Changes proposed in this pull request

• Use @woocommerce/wc-admin-settings @woocommerce/settings imported via DEWP,
  instead of global window.wcSettings or settings store getSetting.
  Improves WC5.8 compatibility.

  Note, that the package is not published and not added to dependencies.

  Works around countries is missing from settings store, woocommerceTranslation from wcSettings in 5.8.0-rc.1 woocommerce-admin#7781

• It also updates DEWP to the latest version, it is not required for the fix.

Screenshots

Detailed test instructions

1. Checkout the branch
2. npm install
3. npm run build
4. Open any Pinterest page, like /wp-admin/admin.php?page=wc-admin&path=%2Fpinterest%2Fonboarding
5. Check the page title, document.title in console

You should see

'Onboarding Guide ‹ Pinterest ‹ Marketing ‹ WooCommerce ‹ gla1.test title — WooCommerce'

instead of

'Onboarding Guide ‹ Pinterest ‹ Marketing ‹ ‹ gla1.test title — WooCommerce'
'Onboarding Guide ‹ Pinterest ‹ Marketing ‹ false ‹ gla1.test title — WooCommerce'

Changelog note

Fix|New|Dev: Add suggested changelog note here

Todo

• figure out why sometimes it returns false
• Check if webpack config change is needed, if we update the WooDEWP

Additional notes

This PR introduces a dependency that is not mentioned in package.json which may break local unit tests in the future, but at least it somewhat indicates where the wcSettings global comes from. Still, behind DEWP mystery, but at least "somewhat".

[findingsimple]

Thanks @tomalec !

[tomalec]

The WC 5.6-5.8 compatible way to obtain woocommerceTranslation way is

const woocommerceTranslation = wc.wcSettings.getSetting('woocommerceTranslation') || wc.wcSettings.getSetting('admin')?.woocommerceTranslation;

It seems that wc-settings given by DEWP come from a different package than we anticipated in the beginning.

It's not wc-admin-settings, but @woocommerce/settings which may or may not be https://www.npmjs.com/package/@woocommerce/settings it would require deeper digging as the links there are broken.

[findingsimple]

@eason9487 would you mind giving this one a review too please?

[eason9487]

Tested well. LGTM.