feat: global schibsted font

[del-ereno]

📝 Description

• Added Schibsted Grotesk as a global site font (body/non-heading text)
• Added font-heading for fraunces use due to inconsistencies w h2, h3 implementation, applied to match design

✅ Checklist

• All Next.js build checks are passing.
• I have performed a self-review of my code.
• I have commented my code in hard-to-understand areas.
• I have verified that my pull request is merging my branch (right side) into the main branch (left side) - see the top banner, underneath the "Open a pull request" header.

📸 Notes

N/A

🚨 Risks

N/A

[Harry-Sheng]

LGTM!!