fix: rename omnibusRate prop and enable for regular RateCard

packages/design-system/lib/components/RateCard/Regular/Regular.stories.tsx

@@ -16,6 +16,7 @@ const meta: Meta<typeof RegularRateCard> = {
     paymentTerm: { control: 'text' },
     rate: { control: 'object' },
     memberRate: { control: 'object' },
+    omnibusRate: { control: 'object' },
     approximateRate: { control: 'object' },
   },
 }
@@ -45,6 +46,11 @@ export const Default: Story = {
       label: 'Approx.',
       unit: 'EUR',
     },
+    omnibusRate: {
+      label: 'Lowest past price (last 30 days)',
+      price: '169',
+      unit: 'EUR',
+    },
   },
 }