feat: Ability for the logged in user to create a new account (#985)

Co-authored-by: Divyesh <dkothari@box8.in>
Co-authored-by: Pranav Raj S <pranav@thoughtwoot.com>

app/views/api/v1/accounts/create.json.jbuilder

@@ -0,0 +1,23 @@
+json.data do
+  json.id resource.id
+  json.provider resource.provider
+  json.uid resource.uid
+  json.name resource.name
+  json.display_name resource.display_name
+  json.email resource.email
+  json.account_id @account.id
+  json.pubsub_token resource.pubsub_token
+  json.role resource.active_account_user&.role
+  json.inviter_id resource.active_account_user&.inviter_id
+  json.confirmed resource.confirmed?
+  json.avatar_url resource.avatar_url
+  json.access_token resource.access_token.token
+  json.accounts do
+    json.array! resource.account_users do |account_user|
+      json.id account_user.account_id
+      json.name account_user.account.name
+      json.active_at account_user.active_at
+      json.role account_user.role
+    end
+  end
+end