feat: conditionally track app launch, exit, and failure events based on trackingEnabled state

src/screens/Launch.svelte

@@ -181,7 +181,7 @@
   };
 
   const launch = async () => {
-    umami.track('app_launch_osu');
+    if ($trackingEnabled) umami.track('app_launch_osu');
     const osuRunning = await isOsuRunning();
     if (osuRunning) {
       toast.error('Hold on a second!', {
@@ -485,7 +485,7 @@
       }
 
       await runOsu(osuPath, true);
-      umami.track('app_exit_osu');
+      if ($trackingEnabled) umami.track('app_exit_osu');
       launchInfo = 'Cleaning up...';
       await getCurrentWindow().show();
       if (presenceUpdater) {
@@ -536,7 +536,7 @@
         description: 'Failed to launch.',
       });
       launching.set(false);
-      umami.track('app_launch_fail', { error: err });
+      if ($trackingEnabled) umami.track('app_launch_fail', { error: err });
     }
   };