Hardcode classes for radios / checkboxes

These are dynamically inserted, but adding them statically makes for a better perf story – the custom inputs can render immediately instead of waiting for the JS to kick in.

lib/verify_form_builder.rb

@@ -1,14 +1,14 @@
 class VerifyFormBuilder < ActionView::Helpers::FormBuilder
   # Our custom radio / checkbox implementation
   def custom_radio_button key, value, text, attributes = {}
-    label "#{key}_#{value.to_s.parameterize}", class: 'block-label' do
+    label "#{key}_#{value.to_s.parameterize}", class: 'block-label selection-button-radio' do
       input = radio_button key, value, attributes
       "#{input} #{text}".html_safe
     end
   end
 
   def custom_check_box key, attributes, true_value, false_value, text
-    label key, class: 'block-label' do
+    label key, class: 'block-label selection-button-checkbox' do
       input = check_box key, attributes, true_value, false_value
       "#{input} #{text}".html_safe
     end