feat: Discount Filters

- Discount filters in filters section
- Code cleanup
diff --git a/erpnext/templates/includes/macros.html b/erpnext/templates/includes/macros.html
index 1063704..2c5f7b9 100644
--- a/erpnext/templates/includes/macros.html
+++ b/erpnext/templates/includes/macros.html
@@ -315,3 +315,91 @@
 	{% endfor %}
 </div>
 {%- endmacro -%}
+
+{%- macro field_filter_section(filters)-%}
+{% for field_filter in filters %}
+	{%- set item_field =  field_filter[0] %}
+	{%- set values =  field_filter[1] %}
+	<div class="mb-4 filter-block pb-5">
+		<div class="filter-label mb-3">{{ item_field.label }}</div>
+
+		{% if values | len > 20 %}
+		<!-- show inline filter if values more than 20 -->
+		<input type="text" class="form-control form-control-sm mb-2 product-filter-filter"/>
+		{% endif %}
+
+		{% if values %}
+		<div class="filter-options">
+			{% for value in values %}
+			<div class="checkbox" data-value="{{ value }}">
+				<label for="{{value}}">
+					<input type="checkbox"
+						class="product-filter field-filter"
+						id="{{value}}"
+						data-filter-name="{{ item_field.fieldname }}"
+						data-filter-value="{{ value }}"
+					>
+					<span class="label-area">{{ value }}</span>
+				</label>
+			</div>
+			{% endfor %}
+		</div>
+		{% else %}
+		<i class="text-muted">{{ _('No values') }}</i>
+		{% endif %}
+	</div>
+{% endfor %}
+{%- endmacro -%}
+
+{%- macro attribute_filter_section(filters)-%}
+{% for attribute in filters %}
+	<div class="mb-4 filter-block pb-5">
+		<div class="filter-label mb-3">{{ attribute.name}}</div>
+		{% if values | len > 20 %}
+		<!-- show inline filter if values more than 20 -->
+		<input type="text" class="form-control form-control-sm mb-2 product-filter-filter"/>
+		{% endif %}
+
+		{% if attribute.item_attribute_values %}
+		<div class="filter-options">
+			{% for attr_value in attribute.item_attribute_values %}
+			<div class="checkbox">
+				<label data-value="{{ value }}">
+					<input type="checkbox"
+						class="product-filter attribute-filter"
+						id="{{attr_value.name}}"
+						data-attribute-name="{{ attribute.name }}"
+						data-attribute-value="{{ attr_value.attribute_value }}"
+						{% if attr_value.checked %} checked {% endif %}>
+						<span class="label-area">{{ attr_value.attribute_value }}</span>
+				</label>
+			</div>
+			{% endfor %}
+		</div>
+		{% else %}
+		<i class="text-muted">{{ _('No values') }}</i>
+		{% endif %}
+	</div>
+{% endfor %}
+{%- endmacro -%}
+
+{%- macro discount_range_filters(filters)-%}
+<div class="mb-4 filter-block pb-5">
+	<div class="filter-label mb-3">{{ _("Discounts") }}</div>
+	<div class="filter-options">
+		{% for entry in filters %}
+		<div class="checkbox">
+			<label data-value="{{ entry[0] }}">
+				<input type="radio" class="product-filter discount-filter"
+					name="discount" id="{{ entry[0] }}"
+					data-filter-name="discount" data-filter-value="{{ entry[0] }}"
+				>
+					<span class="label-area" for="{{ entry[0] }}">
+						{{ entry[1] }}
+					</span>
+			</label>
+		</div>
+		{% endfor %}
+	</div>
+</div>
+{%- endmacro -%}