feat: notification settings link

[iamacook]

What it solves

Resolves unclear notification settings navigation

How this PR fixes it

A "Notifications settings" link has been added to the notification centre footer.

How to test it

Open the notification centre and observe the new, working link in the footer.

Screenshots

Older screenshots showcasing the presence:

Checklist

• I've tested the branch on mobile 📱
• I've documented how it affects the analytics (if at all) 📊
• I've written a unit/e2e test for it (if applicable) 🧑‍💻

[github-actions]

Branch preview

✅ Deploy successful!

https://notification_settings_link--walletweb.review-wallet-web.5afe.dev

[github-actions]

ESLint Summary View Full Report

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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}

[katspaugh]

When you click on ⚙️ Settings, it should close the notifications popup.

[francovenica]

LGTM.
The button is there, takes to the safe settings.
I've checked that it looks fine with different notifcation statuses: