feat: create story for table header

src/pages/ValidatorManagement/ManagementTable/ManagementTableHeader.stories.tsx

@@ -0,0 +1,21 @@
+import type { Meta, StoryObj } from '@storybook/react'
+
+import ManagementTableHeader from './ManagementTableHeader'
+
+const meta = {
+  title: 'ValidatorManagement/ManagementTableHeader',
+  component: ManagementTableHeader,
+  parameters: {
+    layout: 'centered',
+  },
+  tags: ['autodocs'],
+} satisfies Meta<typeof ManagementTableHeader>
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+export const Default: Story = {
+  args: {
+    validatorsAmount: 4,
+  },
+}