Handle noscript for the new species face picker

We mark the options as `inert` and `aria-hidden` while the JS is still
loading—and if the `noscript` tag tells us it's never coming, it covers
up the picker with a brief explainer!

app/assets/javascripts/items/show.js

@@ -13,3 +13,9 @@ document.addEventListener("click", (e) => {
         console.error("Couldn't update species picker: ", error);
     }
 });
+
+// Now that the face picker is ready to go, mark it as usable.
+for (const options of document.querySelectorAll(".species-face-picker-options")) {
+    options.removeAttribute("inert");
+    options.removeAttribute("aria-hidden");
+}

app/assets/stylesheets/items/_show.sass

@@ -162,6 +162,8 @@ body.items-show
         color: $error-color
 
   .species-face-picker
+    position: relative
+
     input[type=radio]
       position: absolute
       left: -10000px
@@ -173,6 +175,20 @@ body.items-show
       &:not(:checked) + img
         opacity: .5
 
+    noscript
+      position: absolute
+      inset: 0
+      background: rgba(white, .75)
+      z-index: 1
+
+      display: flex
+      align-items: center
+      justify-content: center
+      text-align: center
+
+    &:has(.species-face-picker-options[inert])
+      cursor: wait
+
   .item-zones-info
     margin-top: .5em
 

app/views/items/show.html.haml

@@ -34,6 +34,13 @@
     = submit_tag "Go", name: nil
 
   %form.species-face-picker
+    %noscript
+      This fancy species picker requires Javascript, but you can still use the
+      dropdowns instead!
+    .species-face-picker-options{
+      "inert": true, # waits for JS to remove
+      "aria-hidden": true, # waits for JS to remove
+    }
       - @preview_pet_type_options.each do |pet_type|
         %label
           = radio_button_tag "species_face_id", pet_type.species_id,