chore: update packages and fix template errors/warnings

layouts/default.vue

@@ -58,7 +58,7 @@
       <v-toolbar-title v-html="title"></v-toolbar-title>
       <v-spacer></v-spacer>
       <v-toolbar-items>
-        <v-list-item avatar v-if="hasUser">
+        <v-list-item v-if="hasUser">
           <v-list-item-avatar>
             <v-img :src="user.picture" :alt="user.name"></v-img>
           </v-list-item-avatar>