Affected Packages

All TS packages

Problem

• Can't reuse our base configs in other repos
• Caches like nx cache are more complicated to configure to break when configs change
• Root of repo is pretty noisy with configs
• It's generally a bad practice in package based repos to do absolute paths to outside of the package

Proposed solution

1. Create a new package @eth-optimism/configs in packages/configs
2. Move tsconfig, prettier config, and eslint config to this package
3. Update references to configs from ../../tsconfig.json to @eth-optimism/configs/tsconfig.json
4. Clean up: Remove the configs from nx.json
5. Clean up: remove the configs from checked-changed python script