build: use the traditional brand alias

Use the traditional `@edx/brand` -> `@openedx/brand-openedx` alias, as
that's what the rest of the community (including tutor-mfe) relies on.

Author: arbrandes

package-lock.json

@@ -43,7 +43,7 @@
     ]
   },
   "dependencies": {
-    "@openedx/brand-openedx": "^1.3.0 || 0.0.0-dev",
+    "@edx/brand": "npm:@openedx/brand-openedx@^1.3.0 || 0.0.0-dev",
     "@openedx/frontend-app-authn": "^1.0.0-alpha || 0.0.0-dev",
     "@openedx/frontend-app-learner-dashboard": "^1.0.0-alpha || 0.0.0-dev",
     "@openedx/frontend-app-instructor-dashboard": "^1.0.0-alpha || 0.0.0-dev",

package.json

@@ -5,8 +5,8 @@ import { learnerDashboardApp } from '@openedx/frontend-app-learner-dashboard';
 import { notificationsApp } from '@openedx/frontend-app-notifications';
 
 import '@openedx/frontend-base/shell/style';
-import '@openedx/brand-openedx/core.min.css';
-import '@openedx/brand-openedx/light.min.css';
+import '@edx/brand/core.min.css';
+import '@edx/brand/light.min.css';
 
 const siteConfig: SiteConfig = {
   siteId: 'frontend-template-site',

site.config.build.tsx

@@ -5,8 +5,8 @@ import { learnerDashboardApp } from '@openedx/frontend-app-learner-dashboard';
 import { notificationsApp } from '@openedx/frontend-app-notifications';
 
 import '@openedx/frontend-base/shell/style';
-import '@openedx/brand-openedx/core.min.css';
-import '@openedx/brand-openedx/light.min.css';
+import '@edx/brand/core.min.css';
+import '@edx/brand/light.min.css';
 
 const siteConfig: SiteConfig = {
   siteId: 'frontend-template-dev',