Bug: Incorrect currency in investments

[WarTP]

Where did this bug occur? (required)

• I am a self-hosted user reporting a bug from my self hosted app
• I am a user of Maybe's paid app

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Describe the bug
The data from synth about stocks are in USD every time, eventhough some exchanges are in different currencies. For example BMW on XETRA is in €, not in $, so the calculation is then incorrect on the amount you own. This is more visible for CZK on PSE (Prague stock exchange), since it is in CZK and 1USD is ~24USD

To Reproduce
Go to some investment account
Add transaction
Buy ticker KOMB (PSE)
The value of the is (for today) 890CZK, but Maybe calculates it as it is 890$.

Expected behavior
The value of the is (for today) 890CZK, but Maybe calculates it as it is 890$.

[WarTP]

Upon closer inspection, it looks like it is linked with this #1623

The issue is probably due to synth not filling out the currency to the exchange (or at least, that makes it impossible to get the correct currency in maybe, eventhough that could be coded there)

[zachgoll]

@WarTP yep, I think this is the same root issue we're seeing in #1623

I'm going to close this out so we can consolidate and track in one spot!