Dev-Umgebung: Kompatibilität für PHP 8.3 + Smarty 4.5.6

- Smarty 4.1.1 → 4.5.6 (behebt dynamic property deprecations)
- Core-Klassen: #[\AllowDynamicProperties] für Admin_role, base, Config,
  Customer, Customer_group, CustomerGroups, Item, Structure, website
- website.class.php: counts[parent_id] initialisieren vor ++ (PHP 8.1)
- layout.class.php: HTTP_ACCEPT_LANGUAGE mit isset-Guard
- website_init.php: session_status()-Check vor session_start
- .htaccess: HTTPS-Redirect via X-Forwarded-Proto (statt SERVER_PORT)
- themes/easyshop_advanced/media/: Parent-Theme-Assets nachgezogen
- .gitignore: smarty.4.1.1.bak ausschließen

themes/easyshop_advanced/media/css/content_shoppingcart.css

@@ -0,0 +1,63 @@
+.alright {
+	text-align: right;
+}
+
+.alcenter {
+	text-align: center;
+}
+
+.cart_table {
+	padding:		0px;
+	margin:			0px;
+}
+.cart_head td {
+	border-bottom: #000000 2px solid;
+	margin: 3px 0px;
+	color: #000000;
+	font-weight: bold;
+}
+.cart_row td {
+/*	border-bottom: #BCBCBC 1px solid;*/
+	margin: 3px 0px;
+	padding: 3px;
+}
+.cart_row td span {
+	color: #959595;
+}
+.cart_row td input {
+	width: 37px;
+	height: 20px;
+	border: #ADADAD 1px solid;
+	background: #D4D4D4;
+	color: #000000;
+	text-align: center;
+}
+
+.cart_table td {
+	padding: 5px;
+}
+
+.cart_footer_first td {
+	border-top: #000000 2px solid;
+	margin: 3px 0px;
+	color: #000000;
+	font-weight: bold;
+	text-align: right;
+}
+
+.cart_footer_vat td {
+	border-top: #959595 1px solid;
+	margin: 3px 0px;
+	color: #959595;
+	font-weight: bold;
+	text-align: right;
+}
+
+.cart_footer_sum td {
+	border-top: #000000 2px double;
+	margin: 3px 0px;
+	color: #000000;
+	font-weight: bold;
+	text-align: right;
+}
+