Improve types and code splittability of @tevm/evm package

[coderabbitai[bot]]

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The package requires improvements in its type definitions and code splittability. This issue aims to address the following:

• Expand the narrow type definitions to ensure better type safety and clarity.
• Refactor the code to improve its modularity and maintainability.

This enhancement will help in making the codebase more robust and easier to manage.

Reference: https://github.com/evmts/tevm-monorepo/pull/1105#discussion_r1605945663