* docs(studio): the browser editor in six pages, named the browser editor
* docs(studio): mute where the editor has it, and no solo control
The audio pages still described a solo control and a group-row mute that
the editor does not render. Muting is the speaker button on an audio
track (Mute track / Unmute track), the same toggle on a selected clip,
and the Muted switch; a group is silenced through its members' tracks.
The audio reference drops its solo section for the same reason.