DS Epic: Account Picker

### **Description**

An Account Picker component allows users to select from multiple connected accounts or wallets, displaying key information such as account names and balances. It facilitates seamless switching between accounts, enhancing user convenience and management of DeFi assets.

The issue describes an Account Picker concept but names no files, entry points, tests, or acceptance criteria. Start by locating the design system's existing component structure and related account or wallet components, then confirm the required states, information, and switching behavior before implementation can be considered done.

Written by the indexing model from the issue text.