Bug/2590 error setting exp

[erlandsen-tech]

Description

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I switched the fallback dataframe model from "Tradier" which requires a token, to YahooFinance that does not. In the event that a user of the terminal set expiry date without a source set, we got an error if token for tradier was faulty or not set. Therefore it makes more sense to have yahoo as the fallback dataframe for options. Another possible fix is to throw a console feedback where we tell the user to select a source before setting an expiry date.

How has this been tested?

Description of bug is given in issue #2590
testing have been done

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[DidierRLopes]

Amazing. This is perfect @erlandsen-tech !

Thank you a ton, and welcome 🤗