[feature]: Branded first render #1275 follow up ticket

[dpatil-magento]

For every visual design that is meant to be linkable and could be viewed as the first page of a session, we need a fallback for first render with minimal variation across pages of this type to satisfy the use case of slower connections.

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Please let us know what packages this feature is in regards to:

• venia-concept
• pwa-buildpack
• peregrine
• pwa-devdocs
• upward-js
• upward-spec

[soumya-ashok]

@jimbo to provide options based on discussion for what is possible to implement.

[sirugh]

Moving to JIRA.