fix: radio field accessibility (#3666)

* fix

* test

Author: Paul-Bob

Diff for: app/components/avo/fields/radio_field/edit_component.html.erb

@@ -2,8 +2,8 @@
   <div class="flex flex-col gap-2">
     <% @field.options.each do |key, value| %>
       <div>
-        <%= form.radio_button @field.id, key %>
-        <%= form.label @field.id, value, value: value %>
+        <%= form.radio_button @field.id, key, checked: (@field.value.to_s == key.to_s) %>
+        <%= form.label @field.id, value, value: key %>
       </div>
     <% end %>
   </div>

Diff for: spec/dummy/app/avo/actions/sub/dummy_action.rb

@@ -13,7 +13,7 @@ class Avo::Actions::Sub::DummyAction < Avo::BaseAction
   end
 
   def fields
-    field :size, as: :radio, options: {small: "Small Option", medium: "Medium Option", large: "Large Option"}
+    field :size, as: :radio, options: {small: "Small Option", medium: "Medium Option", large: "Large Option"}, default: :medium
     TestBuddy.hi("Dummy action fields")
     field :keep_modal_open, as: :boolean
     field :persistent_text, as: :text

Diff for: spec/features/avo/radio_field_spec.rb

@@ -75,7 +75,12 @@
 
       expect(page).to have_text("Small Option")
       expect(page).to have_text("Medium Option")
+      expect(page).to have_checked_field("fields_size_medium")
       expect(page).to have_text("Large Option")
+
+      find("label[for='fields_size_large']").click
+      expect(page).not_to have_checked_field("fields_size_medium")
+      expect(page).to have_checked_field("fields_size_large")
     end
   end
 end