Create a portfolio overview that lets users review balances and asset values across supported chains from one place.

[memplethee-lab]

Issue Description

Create a portfolio overview that lets users review balances and asset values across supported chains from one place.

Problem

The current wallet experience is too narrow for users who need a clear overview of their assets and overall position across networks.

Scope

• Add a portfolio summary for supported assets and networks.
• Show totals, individual balances, and asset labels clearly.
• Make the overview easy to scan and understand at a glance.

Acceptance Criteria

• The UI shows a consolidated portfolio summary for supported assets.
• Each asset displays its network and balance clearly.
• Users can quickly understand their overall wallet position.
• The layout remains readable on smaller screens.

Suggested Implementation Notes

• Keep the first version simple and focused on readability.
• Reuse existing balance data and UI structure where possible.
• Avoid overloading the view with unnecessary detail.