refactor(svelte): cleanup components

packages/svelte/src/lib/components/NodeSelection/NodeSelection.svelte

@@ -2,7 +2,7 @@
   import { getRectOfNodes } from '@reactflow/utils';
 
   import { useStore } from '$lib/store';
-  import Selection from '$lib/components/Selection/index.svelte';
+  import { Selection } from '$lib/components/Selection';
   import drag from '$lib/actions/drag';
 
   const { selectionRectMode, nodes, nodeOrigin, transform, updateNodePositions } = useStore();

packages/svelte/src/lib/components/NodeSelection/index.ts

@@ -0,0 +1 @@
+export { default as NodeSelection } from './NodeSelection.svelte';