feat: update typography as per UI Kit

[DiogoSoaress]

Update theme's typography as per latest UI Kit guide -> https://www.figma.com/file/qtXXlwdslAze6yNbLLzIRa/Website-redesign-2.0?type=design&node-id=10829-708&mode=design&t=zuBY8bCFKL1ILz9H-0

Typography feedback was collected here: https://www.notion.so/safe-global/Typography-Updates-QA-54b63bdeab744e80a5605402a85e7753

I've addressed in #368 the feedback I found unrelated with this change

[github-actions]

Branch preview

✅ Deployed successfully in branch deployment:

https://update_typography--homepage.review.5afe.dev

[github-actions]

ESLint Summary View Full Report

Annotations are provided inline on the Files Changed tab. You can also see all annotations that were generated on the annotations page.

Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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^{Report generated by eslint-plus-action}

[github-actions]

ESLint Summary View Full Report

Annotations are provided inline on the Files Changed tab. You can also see all annotations that were generated on the annotations page.

Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

---

^{Report generated by eslint-plus-action}

[DiogoSoaress]

@TanyaEfremova can you review the typography changes across the pages? The font change is very noticeable so I'd like to have your 👍 before merging it into production. Link -> https://update_typography--homepage.review.5afe.dev/

[TanyaEfremova]

Some of the headings use font weight light (300), however, it was only intended for the body text.

[DiogoSoaress]

Some of the headings use font weight light (300), however, it was only intended for the body text.

You're right! Just fixed it. Can you check again?