Fix tests, add applications to eager loading/cache for statuses, fix

application website validation, don't link to app website if website isn't set,
also comment out animated boost icon from #464 until it's consistent with non-animated version

app/lib/application_extension.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module ApplicationExtension
+  extend ActiveSupport::Concern
+
+  included do
+    validates :website, url: true, unless: 'website.blank?'
+  end
+end

app/lib/url_validator.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class UrlValidator < ActiveModel::EachValidator
+  def validate_each(record, attribute, value)
+    record.errors.add(attribute, I18n.t('applications.invalid_url')) unless compliant?(value)
+  end
+
+  private
+
+  def compliant?(url)
+    parsed_url = Addressable::URI.parse(url)
+    !parsed_url.nil? && %w(http https).include?(parsed_url.scheme) && parsed_url.host
+  end
+end