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/js/main_variants.js

@@ -0,0 +1,48 @@
+$(document).ready(function() {
+	
+	// Thumbnails start
+	$('.main_variants_thb_images_forward').unbind('click').bind('click', function() {
+		var thumb_abs_wrapper_selector = $('.thumb_abs_wrapper');
+		var thumb_abs_wrapper_position = thumb_abs_wrapper_selector.position();
+		
+		if (thumb_abs_wrapper_position.left >= -379) {
+			var left = thumb_abs_wrapper_position.left + -379;
+
+			thumb_abs_wrapper_selector.animate({
+				'left': left + 'px'
+			});
+		}
+	});
+	
+	$('.main_variants_thb_images_back').unbind('click').bind('click', function() {
+		var thumb_abs_wrapper_selector = $('.thumb_abs_wrapper');
+		
+		var thumb_abs_wrapper_position = thumb_abs_wrapper_selector.position();
+
+		if (thumb_abs_wrapper_position.left < 0) {
+			var left = thumb_abs_wrapper_position.left + 379;
+
+			thumb_abs_wrapper_selector.animate({
+				'left': left + 'px'
+			});
+		}
+	});
+	
+	$('.thumb_image').unbind('mouseenter').bind('mouseenter', function() {
+		$(this).stop().animate({
+			'opacity': '0.75'
+		}, 150);
+	});
+	
+	$('.thumb_image').unbind('mouseleave').bind('mouseleave', function() {
+		$(this).stop().animate({
+			'opacity': '1'
+		});
+	});
+	// Thumbnails end
+	
+	
+	// Tabs start
+	
+	// Tabs end
+});