feat: migrate numeral to numbro

[rickstaa]

This pull request deprecates the use of the unmaintained numeral-js library and replaces it with the numbro. This was done to fix #236 and ensure the explorer is future-proof.

Warning

Replacement for #237, which, had to be reverted since it broke parts of the interface.

[vercel]

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Name	Status	Preview	Updated (UTC)
explorer-arbitrum-goerli	✅ Ready (Inspect)	Visit Preview	Dec 12, 2023 8:18pm
explorer-arbitrum-one	✅ Ready (Inspect)	Visit Preview	Dec 12, 2023 8:18pm

[vercel]

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[rickstaa]

I have not yet confirmed if these changes are effective for the following sections of the explorer:

1. Protocol Overview Widget: The left part of this widget fails to load due to an internal server error thrown by the /usage endpoint. It appears that I may need to provide the LIVEPEER_COM_API_ADMIN_TOKEN token.

3. On-chain related widgets: I am still working on finding a way to test the widgets used for making on-chain requests, such as transferring LPT and voting.

I have added my current development process below.

---

Contributing

Development Process

1. Clone the repository.

2. Install dependencies using yarn.

3. Rename the .env.example file to .env.

4. Add the required variables to the .env file:

   NEXT_PUBLIC_INFURA_KEY= 
   NEXT_PUBLIC_SUBGRAPH_API_KEY=
   NEXT_PUBLIC_SUBGRAPH_ID=
   NEXT_PUBLIC_WALLET_CONNECT_PROJECT_ID=

5. Set NEXT_PUBLIC_VERCEL_ENV to production within the .env file.

6. Start the development server with the yarn dev command.

Note

Alternatively, you can use yarn build & yarn start if you prefer not to set NEXT_PUBLIC_VERCEL_ENV to production."