Feature Request: Show value to main currency

[snazzy-lung]

Describe the feature

Add the ability to display foreign currency account balances automatically converted into the user’s main account currency directly in the account overview view. This enhancement would show the equivalent amount beneath or next to the foreign currency balance, using real-time or frequently updated exchange rates.

Why is this feature important?

Clarity & Convenience: Users with multi-currency accounts can instantly see the real value of their holdings in their main currency, reducing the need for manual conversions.

Better Financial Overview: Helps users better assess their net worth and make informed decisions by seeing all balances in a consistent reference currency.

Additional context, screenshots, and relevant links

For example:
If a user has a balance of €652.23, the UI should also show ~619.09 CHF (or equivalent, based on current exchange rate),