tui: only perform database updates for modified messages

pkg/tui/views/chat/cmds.go

@@ -47,16 +47,6 @@ func (m *Model) cloneMessage(message conversation.Message, selected bool) tea.Cm
 	}
 }
 
-func (m *Model) updateMessageContent(message *conversation.Message) tea.Cmd {
-	return func() tea.Msg {
-		err := m.App.UpdateMessageContent(message)
-		if err != nil {
-			return shared.WrapError(err)
-		}
-		return msgMessageUpdated(message)
-	}
-}
-
 func (m *Model) cycleSelectedRoot(conv *conversation.Conversation, dir model.MessageCycleDirection) tea.Cmd {
 	if len(conv.RootMessages) < 2 {
 		return nil