Support celo testnet

[JayJay1024]

PR-Codex overview

This PR introduces support for the celo-testnet in the helixbox-app, including configuration, types, and token handling. It updates dependencies and includes new functionality for managing tokens on this network.

Detailed summary

• Added export for celo-testnet in index.ts.
• Introduced CELO_TESTNET in chain.ts.
• Updated getChainConfig and getChainConfigs functions to handle celoTestChain.
• Created celo-testnet.ts with token mappings and configurations.
• Updated package.json to use @helixbridge/helixconf version v1.2.0-beta.

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Latest commit: 098b7c2

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[github-actions]

---helix-app-mainnet---
Commit: 00409b5
Preview: https://helix-apps-h1rd9tv4t-itering.vercel.app https://helixbox-dev-mainnet.vercel.app

---helix-app-testnet---
Commit: 00409b5
Preview: https://helix-apps-test-elhnwjle1-itering.vercel.app https://helixbox-dev-testnet.vercel.app
---helix-app-mainnet---
Commit: 098b7c2
Preview: https://helix-apps-nj1d7iu37-itering.vercel.app https://helixbox-dev-mainnet.vercel.app
---helix-app-testnet---
Commit: 098b7c2
Preview: https://helix-apps-test-oddunlx2a-itering.vercel.app https://helixbox-dev-testnet.vercel.app