Fix remote follow (#2547)

* Add coverage for remote_follow#new

* Fix reference to authorize_follows/card partial

app/views/remote_follow/new.html.haml

@@ -2,7 +2,7 @@
   .follow-prompt
     %h2= t('remote_follow.prompt')
 
-    = render partial: 'authorize_follow/card', locals: { account: @account }
+    = render partial: 'authorize_follows/card', locals: { account: @account }
 
   = simple_form_for @remote_follow, as: :remote_follow, url: account_remote_follow_path(@account) do |f|
     = render 'shared/error_messages', object: @remote_follow

spec/controllers/remote_follow_controller_spec.rb

+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe RemoteFollowController do
+  render_views
+
+  describe '#new' do
+    it 'returns a success' do
+      account = Fabricate(:account)
+      get :new, params: { account_username: account.to_param }
+
+      expect(response).to have_http_status(:success)
+    end
+  end
+end