streamer: fix fetching the user's block list

lib/pleroma/web/streamer.ex

@@ -173,7 +173,7 @@ def push_to_socket(topics, topic, %Activity{data: %{"type" => "Announce"}} = ite
     Enum.each(topics[topic] || [], fn socket ->
       # Get the current user so we have up-to-date blocks etc.
       user = User.get_cached_by_ap_id(socket.assigns[:user].ap_id)
-      blocks = user.info["blocks"] || []
+      blocks = user.info.blocks || []
 
       parent = Object.normalize(item.data["object"])
 
@@ -187,7 +187,7 @@ def push_to_socket(topics, topic, item) do
     Enum.each(topics[topic] || [], fn socket ->
       # Get the current user so we have up-to-date blocks etc.
       user = User.get_cached_by_ap_id(socket.assigns[:user].ap_id)
-      blocks = user.info["blocks"] || []
+      blocks = user.info.blocks || []
 
       unless item.actor in blocks do
         send(socket.transport_pid, {:text, represent_update(item, user)})