Chore: Render avatar url in validate token method (#448)

app/views/devise/token.json.jbuilder

@@ -0,0 +1,17 @@
+json.payload do
+  json.success true
+  json.data do
+    json.id @resource.id
+    json.provider @resource.provider
+    json.uid @resource.uid
+    json.name @resource.name
+    json.nickname @resource.nickname
+    json.email @resource.email
+    json.account_id @resource.account_id
+    json.pubsub_token @resource.pubsub_token
+    json.role @resource.role
+    json.inviter_id @resource.inviter_id
+    json.confirmed @resource.confirmed?
+    json.avatar_url @resource.avatar_url
+  end
+end