feat(svelte): add BaseEdge and EdgeLabelRenderer

packages/svelte/src/lib/actions/portal/index.ts

@@ -0,0 +1,15 @@
+export default function (node: Element, target = 'body') {
+	const targetEl = document.querySelector(target);
+
+	if (targetEl) {
+		targetEl.appendChild(node);
+	}
+
+	return {
+		destroy() {
+			if (node.parentNode) {
+				node.parentNode.removeChild(node);
+			}
+		}
+	};
+}