message: fix: skip empty src for speaker
diff: @@ -14,6 +14,8 @@ export interface SpeakerProps {
  * Speaker for playing audio files
  */
  export const Speaker: FC<SpeakerProps> = props => {
  + if (!props.src) return null
  +
  const width = props.width || props.height || '1.2em'
  const height = props.height || width
  