List all the ZRC20 assets on MM contract-metadata repo

We need to list all the ZRC20 assets in the following repo, which should get them added to MetaMask automatically.

https://github.com/MetaMask/contract-metadata?tab=readme-ov-file#submission-process

Even though it says `This repository is effectively frozen. We recommend that developers of new tokens use EIP 747` but we were told by the MM team to go ahead anyway and it will still work.
