Maybe/app/views/category/deletions/new.html.erb

<%= modal_form_wrapper title: t(".delete_category"), subtitle: t(".explanation", category_name: @category.name) do %>
  <%= styled_form_with url: category_deletions_path(@category),
                       class: "space-y-4",
                       data: {
                         turbo: false,
                         controller: "deletion",
                         deletion_dangerous_action_class: "form-field__submit bg-white text-red-600 border hover:bg-red-50",
                         deletion_safe_action_class: "form-field__submit border border-transparent",
                         deletion_submit_text_when_not_replacing_value: t(".delete_and_leave_uncategorized", category_name: @category.name),
                         deletion_submit_text_when_replacing_value: t(".delete_and_recategorize", category_name: @category.name) } do |f| %>
    <%= f.collection_select :replacement_category_id,
                            Current.family.categories.alphabetically.without(@category),
                            :id, :name,
                            { prompt: t(".replacement_category_prompt"), label: t(".category") },
                            { data: { deletion_target: "replacementField", action: "deletion#updateSubmitButton" } } %>

    <%= f.submit t(".delete_and_leave_uncategorized", category_name: @category.name),
                 class: "form-field__submit bg-white text-red-600 border hover:bg-red-50",
                 data: { deletion_target: "submitButton" } %>
  <% end %>
<% end %>