Full support for ERC1155 on search endpoint

You can now search for ERC1155 collections and NFTs using our search endpoint.

You can now search for ERC1155 collections and NFTs using our search endpoint.

We also added:

1. A new response field, contractType, that indicates the contract type for the collection (ERC1155 vs. ERC721)
2. A new query parameter, contractType, that lets you filter for specific contract types before you search

Check it out here: https://docs.center.dev/reference/search-v2