Convert transaction method hashes to names w/ OpenChain API

[MexicanAce]

🌟 Feature Request

📝 Description

Currently, viewing transactions has mostly the transaction function selector hex value and not the human-readable function name.

🤔 Rationale

I propose that we make a request to the OpenChain API to attempt to convert these function selectors even if the contact is not verified, so that people can more easily see what's going on.

BEFORE

AFTER

📋 Additional Context

Here's a link to the OpenChain.xyz API docs: https://docs.openchain.xyz/#/default/get_signature_database_v1_search

The endpoint to use would be: https://api.openchain.xyz/signature-database/v1/lookup where you pass in a comma-delimited list of function selectors as follows:

https://api.openchain.xyz/signature-database/v1/lookup?function=0xb1dc65a4%2C0x782661bc%2C0xa9059cbb%2C0x3161b7f6&filter=true

Example response:

{
  "ok": true,
  "result": {
    "event": {},
    "function": {
      "0x3161b7f6": [
        {
          "name": "setPrice((uint32,(uint128,uint64,uint32))[])",
          "filtered": false
        }
      ],
      "0x782661bc": [
        {
          "name": "setPrices(address[],uint256[],uint256)",
          "filtered": false
        }
      ],
      "0xa9059cbb": [
        {
          "name": "transfer(address,uint256)",
          "filtered": false
        }
      ],
      "0xb1dc65a4": [
        {
          "name": "transmit(bytes32[3],bytes,bytes32[],bytes32[],bytes32)",
          "filtered": false
        }
      ]
    }
  }
}