FIX: better descripotion (closes #188)

frontend/src/views/netdb/Tokens.vue

@@ -149,7 +149,7 @@
                   </h6>
                 </template>
                 <h6 v-else>Keine Rollen zugewiesen</h6>
-                <p class="text-muted">Rollen</p>
+                <p class="text-muted">Rollen (globale Rechte)</p>
               </b-col>
               <b-col lg="2">
                 <template v-if="account.parent_login_name !== account.login_name">