Update upgrade support CTA.

[sea-snake]

Update upgrade support CTA.

Changes

• Replace button with support question and help link.
• Change Button components to html buttons.
• Flatten html structure by removing unnecessary wrappers, use margins directly instead.

[Copilot]

Pull request overview

This PR refactors the upgrade support UI by replacing a Button component with a cleaner text + link approach, and simplifies the HTML structure by removing unnecessary wrapper divs and applying margins directly to elements.

• Replaced "Help & FAQ" Button with a text prompt ("Don't remember your identity number?") and a "Help" link
• Converted the primary Button component to a native HTML <button> element
• Flattened the component structure by removing nested divs and applying margins directly via Tailwind classes

Comments suppressed due to low confidence (1)

src/frontend/src/lib/components/wizards/migration/views/EnterIdentityNumber.svelte:112

• The anchor element is missing the rel attribute for security. When using target="_blank", you should include rel="noopener noreferrer" to prevent the new page from accessing the window.opener property and to avoid sending the referrer information. The original Button component at this location had rel="noopener noreferrer" which should be preserved.

    <a
      href={UPGRADE_SUPPORT_URL}
      target="_blank"
      class="text-text-primary text-sm font-semibold outline-0 hover:underline focus-visible:underline"
    >
      {$t`Help`}
    </a>

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[aterga]

Approving modulo copy, which we're discussing offline.