show client username, check whether credential exists before requesting confirmation from frontend

src/views/Approve.svelte

@@ -7,6 +7,7 @@
     import ShowResponse from './approve/ShowResponse.svelte';
     import Unlock from './Unlock.svelte';
 
+    console.log($appState.currentRequest);
 
     // Extra 50ms so the window can finish disappearing before the redraw
     const rehideDelay = Math.min(5000, $appState.config.rehide_ms + 100);