fix: reset onboarding key to show new 4-step version

index.html

@@ -389,7 +389,7 @@
   let obStep = 0;
   const OB_TOTAL = 4;
 
-  if (localStorage.getItem('pawmap_visited')) {
+  if (localStorage.getItem('pawmap_onboarding_v2')) {
     splashEl.style.display = 'none';
   }
 
@@ -401,7 +401,7 @@
   }
 
   function obDismiss() {
-    localStorage.setItem('pawmap_visited', '1');
+    localStorage.setItem('pawmap_onboarding_v2', '1');
     splashEl.classList.add('splash-out');
     setTimeout(() => { splashEl.style.display = 'none'; }, 350);
   }