auth.html: use "transactions" product instead of "auth"
auth.html: use "transactions" product instead of "auth"

Suggesting this change, as at least one credit card company (American Express) is not an option when I use the "auth" product type and try to link the account. Since the goal is to retrieve transactions, it seems like this is the more correct product to pass to `Plaid.create`
ebridges/plaid2qif,ebridges/plaid2qif,ebridges/plaid2qif