Only show changelog for headless builds

Summary: ^

Reviewed By: LukeDefeo, aigoncharov

Differential Revision: D50557155

fbshipit-source-id: 9f0990ded22ed18d01931ed3b2652498eb6b1abc

desktop/flipper-ui-core/src/sandy-chrome/SandyApp.tsx

@@ -79,7 +79,9 @@ export function SandyApp() {
       Dialog.showModal((onHide) => <PWAInstallationWizard onHide={onHide} />);
     }
 
+    if (serverConfig.environmentInfo.isHeadlessBuild) {
       showChangelog(true);
+    }
 
     // don't warn about logger, even with a new logger we don't want to re-register
     // eslint-disable-next-line