Update reopen banner with new content

[elceebee]

Context

Some content changes to the banner we show candidates after the apply deadline has passed.

Changes proposed in this pull request

Before	After

Guidance to review

Can be viewed locally or on the review app at /rails/view_components/candidate_interface/reopen_banner_alert/reopen_banner_component

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
• Inform data insights team due to database changes
• Make sure all information from the Trello card is in here
• Rebased main
• Cleaned commit history
• Tested by running locally
• Add PR link to Trello card

[elceebee]

Review and update Apply Banner: "Applications for courses... are closed" (17th Sept - 8th Oct)

[github-actions]

You have one or more flakey tests on this branch! ❄️ ❄️ ❄️

Failed 1 out of 3 times at ./spec/system/provider_interface/change_existing_offer_ske_standard_flow_spec.rb:28: ⚠️ expected to find visible field "Condition 2" that is not disabled with value "A* on Maths A Level" but there were no matches. Also found "Be cool", which matched the selector but not all filters. Expected value to be "A* on Maths A Level" but was "Be cool"