[Public Catalog] Quickstart Details Stijn nits

[jpvajda]

Acceptance Criteria

• make the docs overview tile clickable and link the the docs url --> won't do
• align label position on datasource tab below doc description

screenshots

• what's included on public site uses h3, but in-product uses an h2 for headers
• in-product we have an h2 title About this quickstart, which we don’t have public. I think we should remove the About this quickstart in-product because we end up with too many headers
• (I also notice that the font size for text public is 16px, in-product is 12px (maybe that’s a platform thing and harder to control, we can start with aligning the headers))\

confirmed the platform has a specific font size set we can't override.
all other issues are resolved in catalog-pack-details 48

[jpvajda]

I'm going to ask @danielgolden about making just one tile clickable on over view as it feels a bit odd to me from a UX perspective.