## Description
Introduces a global single-audio playback helper and hooks it into
dashboard and widget entrypoints. Adds play/pause event handlers in the
Audio chip to sync UI state. The helper enforces one audio playing at a
time and auto-advances to the next adjacent audio on end.
Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>
Co-authored-by: iamsivin <iamsivin@gmail.com>