fix(e2e): classify xlvask-flag-to-selvvash-navigation.spec.ts as superuser role

PR #308 (AUT-11) added a new e2e test for the XL Vask flag to Selvvask
navigation, but it failed the playwright-full-slice-ownership check
because it wasn't in any of the role-scoped ownedFilesByRole lists.

Since the Selvvash view is superuser-only functionality, this test
should be in the superuser role.

scripts/run-playwright-full-slice.mjs

@@ -122,7 +122,8 @@ export const ownedFilesByRole = {
     "superuser-users.spec.ts",
     "superuser-vehicles.smoke.spec.js",
     "workfeed-config.smoke.spec.js",
-  ],
+      "xlvask-flag-to-selvvash-navigation.spec.ts",
+],
 };
 
 export const titleRules = [