refactor: remove abis folder and integrate gas limit into main table

- Remove abis/IEntropyV2.json file as requested
- Delete separate EntropyGasLimitTable component
- Integrate gas limit column back into EntropyDeploymentTable
- Update contract-addresses.mdx to use unified table approach
- Currently showing static gas limits, dynamic fetching to be implemented next

Co-Authored-By: Jayant <[email protected]>

Author: devin-ai-integration[bot]