playground: don't hard code module name

Author: davidstackio

playground/app.vue

@@ -23,7 +23,7 @@ useSeoMeta({
           <v-col cols="12">
             <h1>Welcome to the {{ nuxtifyConfig.brand?.name }} playground!</h1>
             <p class="text-body-1 text-medium-emphasis">
-              Explore the core functionalities and configuration of the <strong>@nuxtify/core</strong> module.
+              Explore the core functionalities and configuration of the <strong>{{ nuxtifyConfig.brand?.name }}</strong> module.
             </p>
           </v-col>
         </v-row>