fixup! chore(chat): create more chats/messages + set membership

priv/repo/seeds.exs

@@ -62,10 +62,13 @@ rooms_and_messages = [
     room: %{name: "the-shire", topic: "A peaceful place for hobbits"},
     messages: [
       {frodo, "What news of the outside world? Tell me everything!"},
-      {gandalf, "What can I tell you? Life in the wide world goes on much as it has this past Age..."},
+      {gandalf,
-      {gandalf, "Full of its own comings and goings, scarcely aware of the existence of Hobbits..."},
+       "What can I tell you? Life in the wide world goes on much as it has this past Age..."},
+      {gandalf,
+       "Full of its own comings and goings, scarcely aware of the existence of Hobbits..."},
       {frodo, "You're late!"},
-      {gandalf, "A wizard is never late, Frodo Baggins. Nor is he early. He arrives precisely when he means to."}
+      {gandalf,
+       "A wizard is never late, Frodo Baggins. Nor is he early. He arrives precisely when he means to."}
     ]
   },
   # Moria Room
@@ -95,11 +98,13 @@ rooms_and_messages = [
 
 for %{room: room, messages: messages} <- rooms_and_messages do
   room = Room |> struct(room) |> Repo.insert!()
+
   users =
     for {user, message} <- messages do
       Repo.insert!(%Message{user: user, room: room, body: message})
       user
     end
+
   for user <- MapSet.new(users) do
     Repo.insert!(%RoomMembership{user: user, room: room})
   end