Overriding Mautic5 Twig templates with a plugin

I am trying to override the Leads table view of Mautic (v5.0.3) via a plugin I created. Plugin is installed and works properly.

The Twig template I am trying to override resides at

I had copied that file to
and edited it.

I have cleared cache but still do not see my changes. What else is needed for the system to pickup the template from the plugin instead from the core bundle?