Add more End of Cycle related previews for visibility

[elceebee]

Context

More previews that are relevant to the End of Cycle.

Changes proposed in this pull request

The Reopen Banner and the Carry over inset text added to previews

Guidance to review

Link to Trello card

Things to check

• If the code removes any existing feature flags, a data migration has also been added to delete the entry from the database
• This code does not rely on migrations in the same Pull Request
• If this code includes a migration adding or changing columns, it also backfills existing records for consistency
• If this code adds a column to the DB, decide whether it needs to be in analytics yml file or analytics blocklist
• API release notes have been updated if necessary
• If it adds a significant user-facing change, is it documented in the CHANGELOG?
• Required environment variables have been updated added to the Azure KeyVault