feat(ledger-browser): handle ERC721 token metadata

[musicboy0322]

Primary Change:

• Modify 'TestERC721.json' to update the 'BaseUrl' for testing about fetching data from 'TokenUri()'.
• Add the process of fetching data from 'TokenUri()'.
• Add 'name', 'description', and 'image' columns to the 'ethereum.token_erc721' table in Postgres to store the data.
• Set up a simple API server to simulate fetching data from 'TokenUri()' for testing purposes.

Fixes #3552

Pull Request Requirements

• Rebased onto upstream/main branch and squashed into single commit to help maintainers review it more efficient and to avoid spaghetti git commit graphs that obfuscate which commit did exactly what change, when and, why.
• Have git sign off at the end of commit message to avoid being marked red. You can add -s flag when using git commit command. You may refer to this link for more information.
• Follow the Commit Linting specification. You may refer to this link for more information.

Character Limit

• Pull Request Title and Commit Subject must not exceed 72 characters (including spaces and special characters).
• Commit Message per line must not exceed 80 characters (including spaces and special characters).

A Must Read for Beginners
For rebasing and squashing, here's a must read guide for beginners.

[outSH]

Thanks, looks great! I've left two small comments.

Also, remember to fix the failing CI tests:

• yarn_codegen
• yarn_lint (Server is defined but never used in one of the tests)
• commitlint

[musicboy0322]

Hi @outSH! Thanks for the feedback. I will address them.

[petermetz]

@musicboy0322 LGTM assuming @outSH 's comments are addressed.

[musicboy0322]

Hi @outSH !

Thanks for the response! I have updated the code based on the two pieces of feedback. If I misunderstood anything, please let me know and I will address it.

Thanks again!

[outSH]

This is great. thank you!