Mobilizon.Actors.sanitize_bounding_box_params

Called by:

• Mobilizon.Actors.events_for_bounding_box (L1493)
• Mobilizon.Actors.events_for_bounding_box (L1494)
• Mobilizon.Actors.events_for_bounding_box (L1495)
• Mobilizon.Actors.events_for_bounding_box (L1496)