feat: Wishlist Page

- Navbar icon with badge count for wishlist
- Wishlist page with cards
- Cards can be moved to cart or removed in a click
- Separated all wishlist related methods into wishlist.js
- Made a common js method(util) to add/remove wishlist items
- Bug fix: Make sure items are removed from session user's wishlist

erpnext/templates/pages/wishlist.html

@@ -0,0 +1,24 @@
+{% extends "templates/web.html" %}
+
+{% block title %} {{ _("Wishlist") }} {% endblock %}
+
+{% block header %}<h3 class="shopping-cart-header mt-2 mb-6">{{ _("Wishlist") }}</h1>{% endblock %}
+
+{% block page_content %}
+{% if items %}
+	<div class="row">
+		<div class="col-12 col-md-11 item-card-group-section">
+			<div class="row products-list">
+					{% from "erpnext/templates/includes/macros.html" import wishlist_card %}
+					{% for item in items %}
+						{{ wishlist_card(item, settings) }}
+					{% endfor %}
+			</div>
+		</div>
+	</div>
+{% else %}
+	<!-- TODO: Make empty state for wishlist -->
+	{% include "erpnext/www/all-products/not_found.html" %}
+{% endif %}
+
+{% endblock %}

erpnext/templates/pages/wishlist.py

@@ -0,0 +1,39 @@
+# Copyright (c) 2021, Frappe Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+from __future__ import unicode_literals
+
+no_cache = 1
+
+import frappe
+from erpnext.e_commerce.shopping_cart.cart import get_cart_quotation
+
+def get_context(context):
+	settings = frappe.get_doc("E Commerce Settings")
+	items = get_wishlist_items()
+
+	if settings.show_stock_availability:
+		for item in items:
+			stock_qty = frappe.utils.flt(
+				frappe.db.get_value("Bin",
+					{
+						"item_code": item.item_code,
+						"warehouse": item.get("warehouse")
+					},
+					"actual_qty")
+				)
+			item.available = True if stock_qty else False
+
+	context.items = items
+	context.settings = settings
+
+def get_wishlist_items():
+	if frappe.db.exists("Wishlist", frappe.session.user):
+		return frappe.db.sql("""
+			Select
+				item_code, item_name, website_item, price,
+				warehouse, image, item_group, route, formatted_price
+			from
+				`tabWishlist Items`
+			where
+				parent=%(user)s"""%{"user": frappe.db.escape(frappe.session.user)}, as_dict=1)
+	return