Fix advertisement bug

Summary: Falsely advertising UIDebugger for iOS devices.

Reviewed By: LukeDefeo

Differential Revision: D41732451

fbshipit-source-id: 0377da0090c4c7f4d56d8a31a2af35b403b69b8f

desktop/plugins/public/layout/index.tsx

@@ -331,7 +331,7 @@ export default class LayoutPlugin extends FlipperPlugin<
 
   onSuggestUIDebugger = () => {
     if (
-      !getFlipperLib().GK('flipper_ui_debugger') &&
+      !getFlipperLib().GK('flipper_ui_debugger') ||
       this.device.os !== 'Android'
     ) {
       return;