fix(memory): correct splice limit to match maxNavigationSaved semantics

Author: flobo3

src/PageCollector.ts

@@ -159,7 +159,7 @@ export class PageCollector<T> {
     }
     // Add the latest navigation first
     navigations.unshift([]);
-    navigations.splice(this.maxNavigationSaved);
+    navigations.splice(this.maxNavigationSaved + 1);
   }
 
   protected cleanupPageDestroyed(page: Page) {
@@ -409,6 +409,6 @@ export class NetworkCollector extends PageCollector<HTTPRequest> {
     } else {
       navigations.unshift([]);
     }
-    navigations.splice(this.maxNavigationSaved);
+    navigations.splice(this.maxNavigationSaved + 1);
   }
 }