chore: install cssbundling rails and set up compilation

spec/dummy/node_modules/simple-update-notifier/src/borderedText.ts

@@ -0,0 +1,12 @@
+const borderedText = (text: string) => {
+  const lines = text.split('\n');
+  const width = Math.max(...lines.map((l) => l.length));
+  const res = [`┌${'─'.repeat(width + 2)}┐`];
+  for (const line of lines) {
+    res.push(`│ ${line.padEnd(width)} │`);
+  }
+  res.push(`└${'─'.repeat(width + 2)}┘`);
+  return res.join('\n');
+};
+
+export default borderedText;