Show Optimize for Airbnb indicators in group calendar view

Problem statement: When a property is opted into the "Optimize for Airbnb" program, the indication only appears in the individual property calendar view. There is no visual indicator in the group/multi-calendar view, making it difficult to see at a glance which properties have active optimization across a portfolio.

Current workaround: Users must open each property's individual calendar to check whether it has an active Optimize for Airbnb opportunity.

Impact:

• Time-consuming to check multiple properties individually
• Risk of missing or forgetting about active optimizations
• Difficult to manage optimization across multiple properties

Proposed solution: Add a visual indicator in the group calendar view showing which properties have active Optimize for Airbnb opportunities, similar to how it appears in individual property calendars.

Unlock: Hosts would be able to quickly see all active optimizations across their portfolio in one view, making it easier to manage and track the program across multiple properties.