Threads should collapse and be filtered when the first post itself is filtered

**Feature Request/Problem**
If a filter is correctly targeting a post in my home feed, I don't want to see replies to it by the author (i.e it is a thread) as more than likely the entire thread deals with the topic that is being filtered in the first place.

**Solution**
A thread in the home feed (perhaps other feeds as well) whose first post is filtered should cause the entire thread to collapse with the single filter indicator as usual.

**Context**

Ideally all I'd see is the initial post filtered along with an indication that it's a thread.