Merge branch 'feature/timeline' into main

src/lib/world-map/WorldMap.svelte

@@ -5,6 +5,8 @@
   import worldData from 'world-atlas/countries-50m.json';
   import { getSelected, toggle, setTotalCount, getHomeCountryCode } from '../layout/selection.svelte.js';
 
+  let { onCountryClick = (_name) => {} } = $props();
+
   const TERRITORY_PARENT = {
     '016': '840', // American Samoa -> United States
     '060': '826', // Bermuda -> United Kingdom
@@ -133,6 +135,7 @@
         .on('click', (event, d) => {
           toggle(effId(d));
           updateFill(d3.select(event.currentTarget));
+          onCountryClick(d.properties.name);
         })
         .on('mouseenter', (event, d) => {
           const s = getSelected();