Feature Request: Add Focus Filters App Filters Support

[Coder84619]

On iOS 18 (maybe earlier?) there's a concept of Focus Filters/App Filters. It states "Selected apps will be notified when this Focus turns on or off." I'd love for the Home Assistant companion app to be listed as an available app. I do see a number of third party apps listed on my phone, so I know there's a public API. By adding this feature it would bypass the need to create Shortcuts calling the HA companion app to perform actions based on focus mode changes. At a minimum I'd like to be able to specify a specific boolean toggle entity name that I can use the turn on or off service call.