feat(staking): add legal links to footer & tos page

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Name	Status	Preview	Comments	Updated (UTC)
api-reference	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 21, 2024 4:12am
pyth-staking-v2-mainnet	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 21, 2024 4:12am
staking-v2	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 21, 2024 4:12am

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| Name | Status | Preview | Comments | Updated (UTC) | | :--- | :----- | :------ | :------- | :------ | | **xc-admin-frontend** | ⬜️ Ignored ([Inspect](https://vercel.com/pyth-web/xc-admin-frontend/Hm7AMTKC4LQ9zNVwAWBDCQtmHBmt)) | [Visit Preview](https://xc-admin-frontend-git-fork-cprussin-add-legal-f-575d37-pyth-web.vercel.app) | | Sep 21, 2024 4:12am |