Add plugin version, Google Merchant Center account ID, and Google Ads account ID to frontend pageview tracking events

[eason9487]

Changes proposed in this Pull Request:

Project thread: pcTzPl-20H-p2

This PR implements another JS part of the project. The target is to attach the following properties when Woo core sends pageview tracking events related to this plugin's pages:

• Plugin Version
• Google Merchant Center account ID if connected
• Google Ads account ID if connected

To achieve the above target, this PR:

• Rename the prepareEventProperties in tracks.js to prepareEventProperties and export it.
• Add base properties to the plugin's page view tracking events via the woocommerce_tracks_client_event_properties filter.
• Extra change: Set the mocked globals.wcAdminFeatures.navigation to false for jest as the new WooCommerce navigation experience is currently on hold and disabled forcibly.
• Extra change: In js/src/index.js, adjust the namespace string that calls addFilter to match its uniquely identified convention.
  • Quoted from @wordpress/hooks doc:

    One notable difference between the JS and PHP hooks API is that in the JS version, addAction() and addFilter() also need to include a namespace as the second argument. Namespace uniquely identifies a callback in the form vendor/plugin/function.

Screenshots:

Detailed test instructions:

1. Go to WooCommerce > Settings > Advanced > Woo.com. Tick off the Enable tracking option.
   • This tracking event can't be tested via the Console tab and localStorage.setItem( 'debug', 'wc-admin:*' ).
2. Open the Network tab of the browser DevTool. Filter All requests and keyword t.gif.
3. Go to this plugin's admin pages and inspect the requests in the Network tab to check if all wcadmin_page_view tracking events have the base properties.
   

   google-listings-and-ads/js/src/utils/tracks.js

   Lines 35 to 37 in 61ef165

   	* - gla_version: Plugin version
   	* - gla_mc_id: Google Merchant Center account ID if connected
   	* - gla_ads_id: Google Ads account ID if connected

4. Go to other admin pages such as Marketing > Overview. Check if the wcadmin_page_view tracking events sent from other pages don't have the base properties.

Changelog entry

[jorgemd24]

Thanks @eason9487, I followed the steps mentioned in the PR and I see that the gla_mc_id and the gl_ads_id and gla_version properties are added to the event. I disconnected the Ads and the MC accounts and reconnected them and everything works well. I tested the events in pages that does not belong to the GLA plugins and I see that the new properties are not added, so LGTM 👍