Describe the solution you'd like
Instead of using a custom map of attribute names, use the attribute IDs as the keys.

Why is this feature needed
Not only does this generify the implementation, but it allows for all attributes (including custom) to be configured as part of biome mob modifiers. This greatly improves the scope of the feature while reducing the code in the process.

Describe alternatives you've considered
leave it as is and use only the limited attributes provided

Additional context
null checks for non-existent attributes will be necessary.