add reaction IDs in model

lib/pleroma/web/mastodon_api/controllers/notification_controller.ex

@@ -56,7 +56,6 @@ def index(%{assigns: %{user: user}} = conn, params) do
     params =
       Map.new(params, fn {k, v} -> {to_string(k), v} end)
       |> Map.put_new("include_types", @default_notification_types)
-
     notifications = MastodonAPI.get_notifications(user, params)
 
     conn

lib/pleroma/web/mastodon_api/views/status_view.ex

@@ -590,7 +590,8 @@ defp build_emoji_map(emoji, users, url, current_user) do
       name: emoji,
       count: length(users),
       url: MediaProxy.url(url),
-      me: !!(current_user && current_user.ap_id in users)
+      me: !!(current_user && current_user.ap_id in users),
+      account_ids: Enum.map(users, fn user -> User.get_cached_by_ap_id(user).id end)
     }
   end
 

lib/pleroma/web/mastodon_api/websocket_handler.ex

@@ -72,7 +72,7 @@ def websocket_handle(:pong, state) do
   # We only receive pings for now
   def websocket_handle(:ping, state), do: {:ok, state}
 
-  def websocket_handle({:text, "ping"}, state) do
+  def websocket_handle({:text, ping}, state) when ping in ~w[ping PING] do
     if state.timer, do: Process.cancel_timer(state.timer)
     {:reply, {:text, "pong"}, %{state | timer: timer()}}
   end