Fix incorrect current user name, closes #840

frontend/components/organisms/layout/TheHeader.vue

@@ -77,7 +77,7 @@
         </v-btn>
       </template>
       <v-list>
-        <v-subheader>{{ getUsername }}</v-subheader>
+        <v-subheader>{{ getUsername() }}</v-subheader>
         <v-list-item @click="signout">
           <v-list-item-icon>
             <v-icon>mdi-logout</v-icon>

frontend/store/auth.js

@@ -26,7 +26,7 @@ export const getters = {
   isAuthenticated(state) {
     return state.token != null
   },
-  getUsername() {
+  getUsername: () => () => {
     return localStorage.getItem('username')
   }
 }