Remove `getProfile` calls when loading feed (#3881)
* remove unnecessary `getProfile()` calls from feed load
add comments
ensure only if first
simplify
nit
handle cases where the parent is removed
add a comment
remove unnecessary `getProfile()` calls from feed load
limit only to the first post in the returned items
move the logic out of the render and into the query
add the grandparent properly
update `FeedItem`
bump package
update `FeedItem`
update `post-feed` query
update `FeedSlice`
* nit
* simplify logic
* always pass `parentAuthor`
* oops!
* update `DebugMod`