feat: PRSDM-8603-Updating featured page

[theBulmad]

Description

Update the Presidium styling base theme to cater for the new featured page style on blogs

Issue

https://spandigital.atlassian.net/browse/PRSDM-8603

Screenshots

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PR Readiness Checks

• Your PR title conforms to conventional commits <type>: <jira-ticket-num><title>, for example: fix: PRSDM-123 issue with login with a maximum of 100 characters
• You have performed a self-review of your changes via the GitHub UI
• Comments were added to new code that can not explain itself (see reference 1 and reference 2)
• New code adheres to the following quality standards:
  • Function Length (see reference)
  • Meaningful Names (see reference)
  • DRY (see reference)
  • YAGNI (see reference)

[robyn-thomas]

Left some feedback on both files