Main 7426 edit page add amend ga4

[davidtrussler]

MAIN-7426

Adds the relevant tracking to the Edit page for Guide Editions. The addition of this page required tracking to be added to the accordion section controls as detailed in the Jira ticket and shown in the screenshots below.

Much of the tracking is already in place so this PR

• adds some tests for all the user interactions with the relevant elements on the page
• adds some data-attributes to the view to provide the correct values to be tracked

Tracking can be tested locally with these steps:

• run document.querySelector('form').addEventListener('submit',function(e){e.preventDefault()}) in the browser console. This will disable the form submission so that all data gathered from user interaction with the form, including submission, will be visible in the console.
• run document.addEventListener('click',function(e){if(e.target.href)(e.preventDefault())}) in the browser console. This will disable links from navigating away from the page so that all data gathered from user interaction with the form will be visible in the console.
• run window.GOVUK.analyticsGa4.showDebug = true in the browser console. The browser console will then display the tracking data for all user interactions with the form (including submission) as they occur.

[young-rob]

LGTM 👍