Cash balance is being incorrectly set as buying power about robinhood-mint-sync-chrome

[pkmnct]

This change has been submitted to the Chrome Web Store and Firefox Add-on site.

[billvsd]

Screenshots for reference:

[superpowered]

Hmmmm looks like they do provide us with this number under the cash_available_from_instant_deposits key. So we'd have to change the cash = parseFloat(request.uninvested_cash); -> cash = parseFloat(request.uninvested_cash) - parseFloat(request.cash_available_from_instant_deposits);.
OR there is the withdrawable_cash key which seems to return the cash value without buying power, but I'm not as sure what other scenarios could affect said number.

[pkmnct]

@superpowered I believe there are some other cases where that number does not match up, such as just after a deposit occurs. I believe that subtracting cash_available_from_instant_deposits should be correct.