ignore settings sync for window.experimental.useSandbox (microsoft#154773)

Author: bpasero

src/vs/workbench/electron-sandbox/desktop.contribution.ts

@@ -241,7 +241,8 @@ import { ModifierKeyEmitter } from 'vs/base/browser/dom';
 			'window.experimental.useSandbox': {
 				type: 'boolean',
 				description: localize('experimentalUseSandbox', "Experimental: When enabled, the window will have sandbox mode enabled via Electron API."),
-				default: false
+				default: false,
+				ignoreSync: true
 			},
 		}
 	});