fix(teams): fix fix fix

Removed testing banner
Fixed a JS console error when assigning a user to a previously open task
Fixed a potential abuse where user might be able to score someone else's 
task via API call
Fixed an issue where finding tasks by alias could return tasks belonging 
to other users
Fixed an issue that was appending the user's party ID to their list of 
Guilds
Fixed an issue where group tasks were not receiving the default tag 
needed for filtering them on user's personal list

website/client/src/app.vue

@@ -42,7 +42,6 @@
           <damage-paused-banner />
           <gems-promo-banner />
           <gift-promo-banner />
-          <teams-testing-banner />
           <notifications-display />
           <app-menu />
           <div
@@ -159,7 +158,6 @@ import AppHeader from './components/header/index';
 import DamagePausedBanner from './components/header/banners/damagePaused';
 import GemsPromoBanner from './components/header/banners/gemsPromo';
 import GiftPromoBanner from './components/header/banners/giftPromo';
-import TeamsTestingBanner from './components/header/banners/teamsTesting';
 import AppFooter from './components/appFooter';
 import notificationsDisplay from './components/notifications';
 import snackbars from './components/snackbars/notifications';
@@ -196,7 +194,6 @@ export default {
     DamagePausedBanner,
     GemsPromoBanner,
     GiftPromoBanner,
-    TeamsTestingBanner,
     notificationsDisplay,
     snackbars,
     BuyModal,