Update database schema, fix spec

spec/jobs/create_lndhub_account_job_spec.rb

@@ -25,7 +25,7 @@ RSpec.describe CreateLndhubAccountJob, type: :job do
 
   context "with existing credentials stored" do
     before do
-      user.ln_login = "foo"
+      user.ln_account = "foo"
       user.ln_password = "bar"
       user.save!
     end
@@ -36,7 +36,7 @@ RSpec.describe CreateLndhubAccountJob, type: :job do
       expect(WebMock).to_not have_requested(:post, "http://localhost:3023/create")
 
       user.reload
-      expect(user.ln_login).to eq("foo")
+      expect(user.ln_account).to eq("foo")
       expect(user.ln_password).to eq("bar")
     end
   end