Description

While the old FunctionEvaluator works fine, it uses old components and this would prevent doing the final destroy on old code.
This should be adapted to use:

• WidgetBase
• default-view-types components instead of main-types

Completion checklist

• Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist