chore: Track PWA installs

src/lib/util/stats.ts

@@ -88,6 +88,7 @@ const delaysPerEvent = {
   mobileViewToggle: defaultDelay,
   panZoom: minutesToMilliSeconds(10),
   playgroundToggle: 0,
+  pwaInstalled: defaultDelay,
   render: minutesToMilliSeconds(5),
   renderDiagram: defaultDelay,
   themeChange: defaultDelay,

src/routes/edit/+page.svelte

@@ -53,6 +53,9 @@
 
   onMount(async () => {
     await initHandler();
+    window.addEventListener('appinstalled', () => {
+      logEvent('pwaInstalled');
+    });
   });
 
   let isHistoryOpen = $state(false);