Returned by usePlayFile to the views that play an uploaded file.
fileUrl: string
The file's URL, with the viewer's media token, as the player loads it.
active: boolean
True while the file is the player's current item, playing or paused.
playing: boolean
True while the file is playing.
toggle: () => void
Plays the file from the start, or pauses and resumes it once it is the player's current item, so a second click doesn't restart it.