Hide PWA app from Spotlight

Reviewed By: LukeDefeo

Differential Revision: D50411182

fbshipit-source-id: 46c089c69aefb58f85a861c7898ee355f094e03c

desktop/flipper-ui-core/src/chrome/PWAppInstallationWizard.tsx

@@ -132,6 +132,7 @@ async function install(event: any) {
       if (choiceResult.outcome === 'accepted') {
         tracker.track('pwa-install-outcome', {installed: true});
         console.log('PWA installation, user accepted the prompt.');
+        return getRenderHostInstance().flipperServer.exec('move-pwa');
       } else {
         tracker.track('pwa-install-outcome', {installed: false});
         console.log('PWA installation, user dismissed the prompt.');