perspective tre shows dependencies

packages/web/src/perspectives/PerspectiveTree.svelte

@@ -0,0 +1,24 @@
+<script lang="ts">
+  import PerspectiveNodeRow from './PerspectiveNodeRow.svelte';
+
+  export let nodes = [];
+
+  function processFlatColumns(res, columns) {
+    for (const col of columns) {
+      res.push(col);
+      if (col.isExpanded) {
+        processFlatColumns(res, col.childNodes);
+      }
+    }
+  }
+
+  function getFlatColumns(columns) {
+    const res = [];
+    processFlatColumns(res, columns);
+    return res;
+  }
+</script>
+
+{#each getFlatColumns(nodes) as node}
+  <PerspectiveNodeRow {node} />
+{/each}