Keep Authoring within its stack and theme, and cover its wiring

- Keep the documented 72px / flex-grow 1 action sizing and the 360px
  panel width; the larger type applies to the Authoring panel only, so
  CCTV and Street Level buttons are unchanged.
- Scope the primary and file-row styles to the panel so Cyber's shared
  button surface no longer overrides them.
- Shorten the scene PLAY in Spanish and Russian so it does not break
  mid-word, and fix two translation inconsistencies.
- Map the spoken name "authoring" to the panel.
- Clear the has-shots marker when the controls are destroyed.
- Test the idle button states through published changes, the PLAY
  translation context, and where the sharing row is placed.

src/voice/gevActions.js

@@ -98,6 +98,7 @@ const PANEL_ALIASES = new Map([
   ['global context', 'global-context-panel'],
   ['right context', 'global-context-panel'],
   ['context right panel', 'global-context-panel'],
+  ['authoring', 'scene-panel'],
   ['scenes', 'scene-panel'],
   ['scene', 'scene-panel'],
   ['post processing', 'pp-toggles'],