Code Insights: Implement first dynamic insight example section for the landing page

Created by: vovakulikov

Context

Designs - https://www.figma.com/file/EFgTP7gpdpQSEo1n4FUfsW/In-product-landing-page-WIP?node-id=1128%3A9814

Implement the first section for the landing page layout.

Open questions

• What is the default value for the repo input field?
• Should we always have just one query?

Tech notes

• We could reuse some of the view components for the chart.
• We can use just in time GQL query to implement data fetching for this insight