start of vertical view

website/src/lib/components/collapsible-tree/CollapsibleTree.svelte

@@ -2,9 +2,12 @@
 	import { setContext } from 'svelte';
 	import { writable } from 'svelte/store';
 
+	export let side: 'left' | 'right' = 'right';
+
 	let open = writable<Record<string, boolean>>({});
 
 	setContext('collapsible-tree-state', open);
+	setContext('collapsible-tree-side', side);
 </script>
 
 <slot />