CLASSROOMIO-T-42: Limit subdomain names available to organizations

Co-authored-by: Rotimi Best <rotimiibitoyeemma@gmail.com>

Merge-request: CLASSROOMIO-MR-9
Merged-by: Digdippa Team <digdippa@gmail.com>

src/utils/constants/app.js

@@ -0,0 +1,24 @@
+export const blockedSubdomain = [
+  'app',
+  'apps',
+  'support',
+  'help',
+  'teachers',
+  'church',
+  'tech',
+  'build',
+  'community',
+  'conference',
+  'campaign',
+  'blog',
+  'forum',
+  'mobile',
+  'dev',
+  'stage',
+  'prod',
+  'group',
+  'groups',
+  'academy',
+  'schools',
+  'training',
+];