Hero title should only include year if that option is checked.

Problem/Motivation

web/themes/contrib/event_horizon/components/site-hero-25/site-hero-25.twig

Steps to reproduce

Create a new event and assign a year to the taxonomy.

Proposed resolution

Add a checkbox to toggle the year on and off on the taxonomy group.

Remaining tasks

Add the taxonomy field option and include the markup change in the template.

User interface changes