feat: Search UI

- Search UI with dropdown results
- Client class to handle Product Search actions and results
- Integrated Search bar into all-products and item group pages
- Run db search without redisearch
- Cleanup: [Search] change decorator names and variables
- Sider fixes

erpnext/public/scss/shopping_cart.scss

@@ -421,7 +421,7 @@ body.product-page {
 
 .total-discount {
 	font-size: var(--text-base);
-	color: var(--primary-color);
+	color: var(--primary-color) !important;
 }
 
 #page-cart {
@@ -529,6 +529,7 @@ body.product-page {
 				height: 22px;
 				background-color: var(--gray-200);
 				float: right;
+				cursor: pointer;
 			}
 
 			.remove-cart-item-logo {
@@ -865,3 +866,14 @@ body.product-page {
 	background-color: var(--gray-100);
 	height: 100%;
 }
+
+.item-thumb {
+	height: 50px;
+	max-width: 80px;
+	min-width: 80px;
+	object-fit: cover;
+}
+
+.brand-line {
+	color: gray;
+}