Fix potential infinite loop in Twig template

When using the `FigureTwicpics` template in a `Figure.twig` component in
a project, using the `@ui` alias might create an infinite loop where the
template tries to include itself.

packages/ui/atoms/Figure/FigureTwicpics.twig

@@ -12,7 +12,7 @@
  */
 #}
 
-{% extends '@ui/atoms/Figure/Figure.twig' %}
+{% extends '@ui-pkg/atoms/Figure/Figure.twig' %}
 
 {% set twic_param = 'v1' %}
 {% if twic_transform is defined %}