Website: Product Configurator and Bootstrap 4 (#15965)

- Refactored Homepage with customisable Hero Section
- New Homepage Section to add content on Homepage as cards or using Custom HTML
- Products page at "/all-products" with customisable filters
- Item Configure dialog to find an Item Variant filtered by attribute values
- Contact Us dialog on Item page
- Customisable Item page content using the Website Content field

erpnext/templates/generators/item/item_details.html

@@ -0,0 +1,22 @@
+<div class="col-md-8">
+<!-- title -->
+<h1 itemprop="name">
+	{{ item_name }}
+</h1>
+<p class="text-muted">
+	<span>{{ _("Item Code") }}:</span>
+	<span itemprop="productID">{{ doc.name }}</span>
+</p>
+<!-- description -->
+<div itemprop="description">
+	{{ doc.web_long_description or doc.description or _("No description given") | safe }}
+</div>
+
+{% if has_variants %}
+	<!-- configure template -->
+	{% include "templates/generators/item/item_configure.html" %}
+{% else %}
+	<!-- add variant to cart -->
+	{% include "templates/generators/item/item_add_to_cart.html" %}
+{% endif %}
+</div>