preserve zen mode per global so it is in sync with full screen

src/vs/workbench/electron-browser/workbench.ts

@@ -850,7 +850,7 @@ export class Workbench implements IPartService {
 
 		const zenConfig = this.configurationService.getConfiguration<IZenModeSettings>('zenMode');
 		// Preserve zen mode only on reload. Real quit gets out of zen mode so novice users do not get stuck in zen mode.
-		this.storageService.store(Workbench.zenModeActiveSettingKey, (zenConfig.restore || reason === ShutdownReason.RELOAD) && this.zenMode.active, StorageScope.WORKSPACE);
+		this.storageService.store(Workbench.zenModeActiveSettingKey, (zenConfig.restore || reason === ShutdownReason.RELOAD) && this.zenMode.active, StorageScope.GLOBAL);
 
 		// Pass shutdown on to each participant
 		this.toShutdown.forEach(s => s.shutdown());