Add Completed Task Filter to the new Home Page Task Widget

[#1]

Description - I would like a built in filter within the widget to show the Completed tasks. 

Why is this feature important to you - Our team likes to see their recently completed tasks for reference and edits. 

How would you like the feature to work - I would like a built in filter within the widget to show the Completed tasks that could be selected and show information the same you can select other built in filters. 

Current Behaviour - Currently, the built in filters within the Task Widget do not play nicely with custom filters to show Completed Work. Tasks will go missing and not appear.