chore: Add fix scripts for lint, format, and TOML checking (#11397)
## Summary
- Adds `lint:fix`, `format:fix`, and `fix:toml` scripts to
`package.json` for easier local fixing of lint/format issues
- Adds corresponding Turborepo task definitions in `turbo.json` with
`lint:fix` depending on `format:fix` and `fix:toml`