Add icons to Thank you page

[berroar]

What is the context of this PR?

The green tick and padlock icons were missing from the census-thank-you page, this PR updates the template so that they appear.

How to review

Use any of the test_thank_you schemas and check the missing icons now appear on the page.

Checklist

• New static content marked up for translation
• Newly defined schema content included in eq-translations repo

[berroar]

Missing icons on thank you page

[MebinAbraham]

They should be on all variations?. I.e non census theme etc

[berroar]

They should be on all variations?. I.e non census theme etc

I've added the green tick to the non census page now, but not sure if the padlock needs to be there? Doesn't really match the text

[MebinAbraham]

They should be on all variations?. I.e non census theme etc

I've added the green tick to the non census page now, but not sure if the padlock needs to be there? Doesn't really match the text

Might be worth checking with Donna.

[berroar]

Confirmed with @donnap573 that there is no need for the padlock icon on the non census thank you page.