[6.25] [Social] Replace the Working Groups with the ENS Admin Panel

## Summary This proposal calls for winding down the Meta-Governance, Ecosystem, and Public Goods Working Groups at the end of Term 6 (Dec 31, 2025) and the creation of the ENS Admin Panel on Jan 1, 2026. ## Motivation The purpose of Working Groups at their creation was to "[promote stability and encourage long-term thinking and planning.](https://docs.ens.domains/dao/proposals/0.4/)" A casual observation of working groups would suggest we are missing the mark and actually detracting from the...