Sync | Make buttons and links clickable without affecting page speed performance and SEO

[sc-krishanthakumara]

Description / Motivation

Links and buttons across the Sync (click-click-launch) site were non-functional due to placeholder url="#" values in SYNC branch item serialization files. These # values were being normalised to http://# by the Sitecore Content SDK at render time, causing clicks to navigate to a blank page. A previous workaround in the component layer made links unclickable entirely, which was also incorrect.

This PR resolves the issue cleanly across three areas:

1. SYNC YML data — replace all # placeholder URLs with meaningful paths

• Hero "Learn more" links → /Speakers
• Hero "Buy" links → /Speakers/Heritage-30 and /Speakers/Heritage-50 respectively
• Navigation and utility links (footer secondary links, header sub-nav, accordion CTAs) with no dedicated page yet → /
• Applies across 25 YML files in the click-click-launch SYNC branch items

2. Component layer — remove placeholder href workaround logic

• Removed isPlaceholderHref helper and HeroLink wrapper from HeroST.tsx, HeaderST.tsx, MultiPromo.tsx, AccordionBlock.tsx, and MiniCart.tsx
• All link fields now render directly via ContentSdkLink, consistent with the original backup-chathumika branch approach
• The MiniCart cart icon trigger renders as a semantic <button> since its action is toggling a panel, not navigation

3. Accessibility — unique aria-label on repeated "Learn more" links

• Repeated "Learn more" button text is kept as-is visually
• Each link now carries a unique aria-label derived from its section context (e.g. aria-label="Monarch II details", aria-label="Damian Turner artist series")
• Resolves Lighthouse accessibility warning for duplicate link text with no UI or copy changes

The fix avoids any client-side URL manipulation, extra re-renders, or JavaScript-based navigation overrides that could affect Page Speed Insights scores. Links are standard anchor elements pointing to real paths with no PSI or Core Web Vitals impact.

Note on # anchors and PSI: Adding # without navigation is achievable via e.preventDefault(), but requires JavaScript on every click and can introduce Lighthouse warnings for links with no meaningful href. Replacing with real

[vercel]

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