Showing duplicate chain icons in Portfolio

[nickcamsmith]

Certain assets (ERC-20s) show the chain icon twice in Portfolio. This might be a known issue, but if so can we fix it because it looks like a bug

[tien]

@alecdwm this is probably an issue with the balances lib? cc @JAhimaz

[alecdwm]

In the wallet we have the concept of mirrored tokens:

https://github.com/TalismanSociety/talisman/blob/8adc7f063b961cf0b2976f6ad947dcbea45ac6a8/apps/extension/src/ui/hooks/useDbCache.ts#L76-L91

We use this for acala, moonbeam, moonriver and moonbase because on those networks we can fetch the same native token balance from either the substrate or the evm side of the chain.

The plan is to integrate this from the wallet back into the balances library so that the webapp can also use it.

[alecdwm]

Fixed by c370f69 (included in #1237)