Expand integration coverage and fix settings UI

src/Jellyfin.Plugin.Multilang/Configuration/userRulesPage.html

@@ -1260,7 +1260,10 @@
             }
           });
           $("ml-reset-user").addEventListener("click", load);
-          $("ml-sort-locale").addEventListener("change", renderSortLocaleAutoText);
+          $("ml-sort-locale").addEventListener("change", function () {
+            state.rules.SortLocale = $("ml-sort-locale").value || "Auto";
+            renderSortLocaleAutoText();
+          });
           $("ml-user-export").addEventListener("click", function () {
             downloadUserExport().catch(function (err) { M.setStatus(status, String(err), true); });
           });