fix(landing): dedupe X pixel initial PageView by URL to survive Strict Mode effect replay

Author: waleedlatif1

apps/sim/app/(landing)/x-page-view-tracker.tsx

@@ -11,7 +11,9 @@ declare global {
 
 // next/script dedupes by id and never reloads on remount, so this must be
 // module-scope (not a ref) to survive LandingLayout unmounting/remounting.
-let hasTrackedInitialPageView = false
+// Keyed by URL (not a boolean) so Strict Mode effect replays and same-URL
+// remounts never re-fire a PageView already counted for that URL.
+let lastTrackedUrl: string | null = null
 
 /**
  * The X pixel base code only auto-tracks the first page load; LandingLayout
@@ -25,11 +27,15 @@ export function XPageViewTracker() {
   const query = searchParams.toString()
 
   useEffect(() => {
-    if (!hasTrackedInitialPageView) {
-      hasTrackedInitialPageView = true
+    const url = query ? `${pathname}?${query}` : pathname
+
+    if (lastTrackedUrl === null) {
+      lastTrackedUrl = url
       return
     }
+    if (url === lastTrackedUrl) return
 
+    lastTrackedUrl = url
     window.twq?.('config', 'q5xbl')
   }, [pathname, query])