chore(Progress): add a simple storybook story

src/v2/components/ui/Progress.stories.tsx

@@ -0,0 +1,17 @@
+import { Meta } from "@storybook/react"
+import { ProgressIndicator, ProgressRoot } from "./Progress"
+
+export const Progress = () => {
+  return (
+    <ProgressRoot>
+      <ProgressIndicator value={0.44} />
+    </ProgressRoot>
+  )
+}
+
+const meta: Meta<typeof Progress> = {
+  title: "Design system/Progress",
+  component: Progress,
+}
+
+export default meta