Update ToS links for Storacha

[heyjay44]

Once we have a Storacha terms page, link to it instead of w3s's terms:

• https://github.com/storacha-network/w3infra/blob/main/upload-api/html.jsx
• https://account.postmarkapp.com/servers/8878071/templates/36826389/edit

[heyjay44]

@travis I think I misinterpreted the original issue - we have Storacha ToS but it isn't linked in places like the sign up email.

https://docs.storacha.network/terms/

[heyjay44]

Issue: the Storacha verification and login flow point to the web3.storage ToS. we need to update those links to connect to: https://docs.storacha.network/terms/