Add a configurable banner notification setting in UI pages

[yosefmaru]

User story

As a DevOps engineer, I want to have a configurable banner notification in aind-data-transfer-service, so I don't have to modify code in all html pages every time we want to notify users on maintenance windows.

Acceptance criteria

• A configurable banner setting that doesn't require modifying html code

Sprint Ready Checklist

• 1. Acceptance criteria defined
• 2. Team understands acceptance criteria
• 3. Team has defined solution / steps to satisfy acceptance criteria
• 4. Acceptance criteria is verifiable / testable
• 5. External / 3rd Party dependencies identified
• 6. Ticket is prioritized and sized