Move padding from list items to links

So that the padding takes up the full space within the tab, move the
padding to the link element. This requires adding a preprocess function
to the theme file and removing the classes from the local task template.

References #341

web/themes/custom/opdavies/opdavies.theme

@@ -25,3 +25,10 @@ function opdavies_preprocess_page(array &$variables): void {
     $variables['#attached']['library'][] = 'opdavies/twitter';
   }
 }
+
+/**
+ * Implements hook_preprocess_HOOK().
+ */
+function opdavies_preprocess_menu_local_task(array &$variables): void {
+  $variables['link']['#options']['attributes']['class'][] = 'block px-5 py-2';
+}

web/themes/custom/opdavies/templates/menu/menu-local-task.html.twig

@@ -15,7 +15,7 @@
  */
 #}
 {% set linkClasses = [
-  'mt-3 ml-3 px-4 py-2 block border border-gray-200',
+  'mt-3 ml-3 border border-gray-200',
   is_active ? 'underline bg-gray-100' : 'bg-white',
 ] %}
 <li{{ attributes.addClass(linkClasses) }}>