FEATURE: Add include_subcategories report filter (PR #9423)


use @action please

needs this._super(…arguments)

would prefer using direct ember computed here, you don’t use anything discourseComputed macro brings

LGTM :+1: happy to filters having a good use case

I am closing this in favour of #9444. @jjaffeux, I will be implementing your feedback in the other pull request. Thank you for the review!