InstanceView: Add pleroma chat messages to nodeinfo

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

@@ -68,7 +68,8 @@ def features do
       if Config.get([:instance, :safe_dm_mentions]) do
         "safe_dm_mentions"
       end,
-      "pleroma_emoji_reactions"
+      "pleroma_emoji_reactions",
+      "pleroma_chat_messages"
     ]
     |> Enum.filter(& &1)
   end

test/web/node_info_test.exs

@@ -145,7 +145,8 @@ test "it shows default features flags", %{conn: conn} do
       "shareable_emoji_packs",
       "multifetch",
       "pleroma_emoji_reactions",
-      "pleroma:api/v1/notifications:include_types_filter"
+      "pleroma:api/v1/notifications:include_types_filter",
+      "pleroma_chat_messages"
     ]
 
     assert MapSet.subset?(