Staking app styling

[cprussin]

This PR implements most of the styling for the staking app. There are a few items that remain for stying after this PR lands which will be done as follow-ups:

• Handle small screens / responsive
• Improve token string formating (large numbers of tokens, delimiters, etc)
• Improve loading / error state designs
• Allow searching / sorting / filtering publishers
• Better error handling
• Add landing page & overview tab designs
• Add descriptions to each program

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Name	Status	Preview	Comments	Updated (UTC)
api-reference	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 4, 2024 5:56am
staking-v2	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 4, 2024 5:56am

1 Skipped Deployment

| Name | Status | Preview | Comments | Updated (UTC) | | :--- | :----- | :------ | :------- | :------ | | **xc-admin-frontend** | ⬜️ Ignored ([Inspect](https://vercel.com/pyth-web/xc-admin-frontend/2mwL37wTVNQxUC8AwTv5am9mnhLY)) | [Visit Preview](https://xc-admin-frontend-git-fork-cprussin-staking-app-4bceca-pyth-web.vercel.app) | | Sep 4, 2024 5:56am |