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/controllers/api/v1/accounts_controller.rb

@@ -14,14 +14,15 @@ class Api::V1::AccountsController < Api::BaseController
               with: :render_error_response
 
   def create
-    @user = AccountBuilder.new(
+    @user, @account = AccountBuilder.new(
       account_name: account_params[:account_name],
       email: account_params[:email],
-      confirmed: confirmed?
+      confirmed: confirmed?,
+      user: current_user
     ).perform
     if @user
       send_auth_headers(@user)
-      render partial: 'devise/auth.json', locals: { resource: @user }
+      render 'api/v1/accounts/create.json', locals: { resource: @user }
     else
       render_error_response(CustomExceptions::Account::SignupFailed.new({}))
     end