perf(StealthySession): Close persistent context default page

scrapling/engines/_browsers/_camoufox.py

@@ -251,6 +251,11 @@ class StealthySession:
                 **self.launch_options
             )
         )
+
+        # Get the default page and close it
+        default_page = self.context.pages[0]
+        default_page.close()
+
         if self.init_script:  # pragma: no cover
             self.context.add_init_script(path=self.init_script)
 
@@ -580,6 +585,11 @@ class AsyncStealthySession(StealthySession):
                 **self.launch_options
             )
         )
+
+        # Get the default page and close it
+        default_page = self.context.pages[0]
+        await default_page.close()
+
         if self.init_script:  # pragma: no cover
             await self.context.add_init_script(path=self.init_script)