[fixup] Fix Update button sizing

By disabling line wrap we can consistently predict how it will appear. The longest translation we currently have is 14 characters so this should be fine.

app/views/spree/orders/form/_cart_actions_row.html.haml

@@ -1,10 +1,8 @@
 %tr
   %td{colspan:"2"}
   %td
-    %button#update-button.secondary.radius.small{"ng-class" => "{ alert: form.$dirty && form.$valid }"}<
-      =# Trimmed whitespace (angle brackets) to ensure first word doesn't wrap after icon
-      %i.ofn-i_023-refresh>
-      &nbsp;
+    %button#update-button.secondary.radius.small{"ng-class" => "{ alert: form.$dirty && form.$valid }"}
+      %i.ofn-i_023-refresh
       = t(:orders_form_update_cart)
   %td
   %td#empty-cart.text-center

app/webpacker/css/darkswarm/cart-page.scss

@@ -29,6 +29,7 @@
   .button {
     margin: 0;
     padding: 0.875rem; // Compact buttons inside table
+    white-space: nowrap;
   }
 
   .toggle-bought {