app/views/admin/site_customization/content_blocks/_form.html.erb
<% if @is_heading_content_block %>
<%= render Admin::SiteCustomization::ContentBlocks::FormHeadingContentBlockComponent.new(@content_block) %>
<% else %>
<%= render Admin::SiteCustomization::ContentBlocks::FormContentBlockComponent.new(@content_block) %>
<% end %>