New line chars in timetable summary/description

[NewtonChutney]

We use custom timetables with multiple launch times per day, and wish to see the tooltip on the timetable have new-line support.
Does anyone have an idea on how to achieve the following view?

I tried \n and <br> in place of ////, but I can't get Airflow to show line breaks in the UI:

Ideally, I'd like to see something like:

Schedule:
- Every working day (Mon-Fri excluding holidays) : 
  - 00H:00M
- Every calendar day : 
  - 10H:00M
  - 12H:00M
  - 09H:00M->17H:00M/60mins

We're currently on Airflow 2.10.5