@wocart/theme / lifecycle / PREVIEW_SECTION_LOAD_EVENT
Variable: PREVIEW_SECTION_LOAD_EVENT
constPREVIEW_SECTION_LOAD_EVENT:"wocart:section-load"="wocart:section-load"
Dispatched on document for each section the editor's preview swapped in,
with the instance id as detail.id. When the whole page was replaced, the
preview dispatches Astro's own astro:page-load instead.