Create storybook for stepper

src/pages/ValidatorOnboarding/Stepper.stories.tsx

@@ -0,0 +1,20 @@
+import type { Meta, StoryObj } from '@storybook/react'
+
+import StepperForm from './Stepper'
+
+const meta = {
+  title: 'ValidatorOnboarding/Stepper',
+  component: StepperForm,
+  parameters: {
+    layout: 'centered',
+  },
+  tags: ['autodocs'],
+  argTypes: {},
+} satisfies Meta<typeof StepperForm>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+export const Stepper: Story = {
+  args: {},
+}