Remove form config from base page template

[rmccar]

What is the context of this PR?

This removes the form config from the page template as this is seen as specific code added originally for eQ and therefore should be moved into eQ. I have also moved the preFooter block slightly so that it mirrors the preHeader block and is now inside the page content div.

BREAKING CHANGES

• This PR removes the form element from the page template. If a form is needed on the page this will now need to be set in the service itself using the bodyStart and bodyEnd blocks to wrap the page content
• This PR moves the bodyEnd block on the page template to outside of the body block

How to review this PR

• Tests pass
• DS can be spun up locally and checking a few patterns you can see that the pages are still displayed as expected

Checklist

This needs to be completed by the person raising the PR.

• I have selected the correct Project for this PR (Design System) and selected the correct status
• I have selected the correct Assignee
• I have linked the correct Issue

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