feat: configure control flows tasks

Signed-off-by: Simon Emms <simon@simonemms.com>

Author: mrsimonemms

src/routes/workflows/[...workflowId]/+page.svelte

@@ -854,8 +854,12 @@
     const node = resolveNode(nodeId);
     if (!node) return;
     if (node.type === 'switch') {
+      const hasDefault = node.branches.some((b) => b.condition === undefined);
       updateCurrentGraph((g) =>
-        replaceNode(g, addSwitchBranch(node, 'new-branch')),
+        replaceNode(
+          g,
+          addSwitchBranch(node, 'new-branch', hasDefault ? '' : undefined),
+        ),
       );
     } else if (node.type === 'fork') {
       updateCurrentGraph((g) =>