update config (Azure#37805)

Co-authored-by: Qiaoqiao Zhang <55688292+qiaozha@users.noreply.github.com>

Author: v-jiaodi

specification/contosowidgetmanager/Contoso.WidgetManager/tspconfig.yaml

@@ -31,9 +31,10 @@ options:
     namespace: Azure.Template.Contoso
     model-namespace: false
   "@azure-tools/typespec-ts":
-    emitter-output-dir: "{output-dir}/{service-dir}/contoso-widgetmanager-rest"
+    emitter-output-dir: "{output-dir}/{service-dir}/contoso-widgetmanager"
+    is-modular-library: true
     package-details:
-      name: "@azure-rest/contoso-widgetmanager"
+      name: "@azure/contoso-widgetmanager"
     flavor: azure
   "@azure-tools/typespec-java":
     emitter-output-dir: "{output-dir}/{service-dir}/azure-contoso-widgetmanager"