add dev domains in pay playground to test

[edwardysun]

Problem solved

Short description of the bug fixed or feature added

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PR-Codex overview

The focus of this PR is to update the client IDs and set thirdweb domains for development environment across multiple components in the playground-web app.

Detailed summary

• Updated clientId in client.ts
• Added setThirdwebDomains for development environment in embed.tsx, direct-payment.tsx, transaction-button.tsx, and page.tsx

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