feat: Add new sections to '/containers/chiselled'

[petesfrench]

Done

• Add new sections to '/containers/chiselled' based on copydoc and design

QA

• Go to https://ubuntu-com-13991.demos.haus/containers/chiselled
• Check content matches the copydoc
• Check design matches the design

Issue / Card

Fixes https://warthogs.atlassian.net/browse/WD-12561

[webteam-app]

Demo

Jenkins

demos.haus

[petesfrench]

@Sophie-32 Can you take a quick look at this please?