Issue-222: Some question types allowing amending answers before submitting.

[GaneshPatil22]

• Added fix for issue-222 so that user will not able to rearrange the tableview rows after submitting the answer. As in coordinator we are sending computed property so if user rearrange the rows after submitting the question but before redirecting to next question then computed property will again compute the answer and provide points if user has rearranged the rows correctly.

[twostraws]

Good job – thank you! 🙌