Add scrollytelling template

[ejfox]

Scrollama would be my choice: https://github.com/russellsamora/scrollama

Previously used: https://github.com/ejfox/themargin-prototypes/blob/master/components/content/memphis/MemphisMapTour.vue#L432

[ejfox]

MVP:

• Pull in a visual form as a component
• Pass in filters/highlights + active status + scroll percentage to component as user scrolls past text
• See component update in realtime based on scroll position

[ejfox]

Inspo: https://www.canarymedia.com/articles/liquefied-natural-gas/how-the-lng-export-boom-clashes-with-climate-goals-visualized?utm_campaign=canary-social&utm_source=twitter&utm_medium=social&utm_content=1675112159