🎨 Enforce PEP 8 Code Style Conventions

[pcaversaccio]

🕓 Changelog

This PR implements the PEP 8 – Style Guide for Python Code across all 🐍 snekmate contracts. In addition, it incorporates the following opinionated set of rules:

• Each line of code should be limited to a maximum of 120 characters, including spaces.
• Code comments should be confined to a maximum of 80 characters per line, including spaces, with an allowed exception for comments with long URL links.

Furthermore, the evaluation order of the if-else statements in the multicall contract has been reversed, changing from if (batch.allow_failure == False): to if batch.allow_failure:. Please note that the gas snapshot changes stem from a recent update to the OpenZeppelin library submodule, introduced by this commit.

🐶 Cute Animal Picture