chore: Add Additional Contact APIs (#1130)

Co-authored-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>

app/views/api/v1/models/_contact.json.jbuilder

@@ -5,3 +5,8 @@ json.id resource.id
 json.name resource.name
 json.phone_number resource.phone_number
 json.thumbnail resource.avatar_url
+json.contact_inboxes do
+  json.array! resource.contact_inboxes do |contact_inbox|
+    json.partial! 'api/v1/models/contact_inbox.json.jbuilder', resource: contact_inbox
+  end
+end