Rename Notification.send/1 to Notification.stream/1

Also update other places where we use the term "send" instead of "stream". This should make it clearer that we are streaming these over websockets / web push and not sending an activity.

lib/pleroma/notification.ex

@@ -757,8 +757,9 @@ def mark_context_as_read(%User{id: id}, context) do
     |> Repo.update_all(set: [seen: true])
   end
 
-  @spec send(list(Notification.t())) :: :ok
+  @doc "Streams a list of notifications over websockets and web push"
-  def send(notifications) do
+  @spec stream(list(Notification.t())) :: :ok
+  def stream(notifications) do
     Enum.each(notifications, fn notification ->
       Streamer.stream(["user", "user:notification"], notification)
       Push.send(notification)

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -201,7 +201,7 @@ defp insert_activity_with_expiration(data, local, recipients) do
 
   def notify_and_stream(activity) do
     {:ok, notifications} = Notification.create_notifications(activity)
-    Notification.send(notifications)
+    Notification.stream(notifications)
 
     original_activity =
       case activity do

lib/pleroma/web/activity_pub/side_effects.ex

@@ -592,9 +592,9 @@ defp delete_object(object) do
     with {:ok, _} <- Repo.delete(object), do: :ok
   end
 
-  defp send_notifications(meta) do
+  defp stream_notifications(meta) do
     Keyword.get(meta, :notifications, [])
-    |> Notification.send()
+    |> Notification.stream()
 
     meta
   end
@@ -625,7 +625,7 @@ defp add_notifications(meta, notifications) do
   @impl true
   def handle_after_transaction(meta) do
     meta
-    |> send_notifications()
+    |> stream_notifications()
     |> send_streamables()
   end
 end