Fix wrong "%1 boosted" label on certain posts
The wrong author identity was selected when the boosted toot was a reply to their own post.
This is now fixed by swapping the if-conditions in the identity property to be inline with the other conditions in this file (i.e. root.isBoosted/root.isReply).
(cherry picked from commit 9e67080e)
75e03fe3 Fix wrong "%1 boosted" label on certain posts