Self-notify on accepting follow requests (#8541)

app/controllers/api/v1/follow_requests_controller.rb

@@ -13,6 +13,7 @@ class Api::V1::FollowRequestsController < Api::BaseController
 
   def authorize
     AuthorizeFollowService.new.call(account, current_account)
+    NotifyService.new.call(current_account, Follow.find_by(account: account, target_account: current_account))
     render_empty
   end