Redesign embedded content across landing pages

[maitreyie-chavan]

Feature Request

Description For each section's landing page content, embed content specific for that landing page (e.g. https://privacysandbox.com/ => PS Landing page, others) This will enhance the accessibility of the most current information for users from diverse sources

In the previous version we embeded iframes however they are not providing a favorable user experience. Therefore, we should replace these iframes with the same HTML content.

Designs

< To be added soon >

[amedina]

This issue includes designing a common UI component that captures the top functionality for each section on a landing page. such as being individually collapsible. cc @gagan0123

[gagan0123]

Partially implemented in version 0.8.0 Privacy Sandbox landing page remaining.