Add PageContent wrapper to Referrals page

Description

The Referrals page currently does not use the standard PageContent layout wrapper.

This change will wrap the Referrals page content with PageContent and provide the page title as Referrals, keeping the page consistent with the application's existing page layout.

Proposed Change

Update ReferralsPage to use:

<PageContent title="Referrals">
  <ReferralsPageClient />
</PageContent>

Before

After