feat: update ScrollToSmooth to version 4.0.1 with new DOM utility functions and improved horizontal scrolling plugin

- Added new DOM utility functions in dom-Ck3NmYb7.js for better selector handling and scroll position retrieval.
- Updated horizontal.cjs.js to use the new DOM utilities and refactored target resolution logic for scrolling.
- Enhanced horizontal scrolling functionality with improved expander management and scroll offset handling.
- Updated snap.cjs.js and snap.iife.min.js to reflect version change and utilize new DOM utilities.
- Updated touch-momentum.cjs.js and touch-momentum.iife.min.js to reflect version change and maintain touch momentum functionality.

Author: bfiessinger

dist/plugins/dom-Ck3NmYb7.js

@@ -0,0 +1,114 @@
+/*!
+* ScrollToSmooth
+* Author: Bastian Fießinger
+* Version: 4.0.1
+*/
+'use strict';
+
+/**
+ * Pure DOM utility functions used by ScrollToSmooth.
+ *
+ * These are stateless helpers with no dependency on the ScrollToSmooth class.
+ */
+
+function querySelector(selector, container = document) {
+  return container.querySelector(selector);
+}
+function querySelectorAll(selector, container = document) {
+  return container.querySelectorAll(selector);
+}
+
+/**
+ * Check whether a selector is valid within the given container.
+ */
+function validateSelector(selector, container = document) {
+  try {
+    if (typeof selector === 'string') {
+      querySelector(selector, container);
+    } else if (isNodeOrElement(selector)) {
+      return container.contains(selector);
+    } else {
+      return false;
+    }
+  } catch {
+    return false;
+  }
+  return true;
+}
+
+/**
+ * Runtime check for whether a value is a DOM Node or HTMLElement.
+ */
+function isNodeOrElement(obj) {
+  return obj instanceof Node;
+}
+
+/**
+ * Current vertical scroll position.
+ */
+function getScrollingElement() {
+  return document.scrollingElement || document.documentElement || document.body;
+}
+function getScrollPositionY() {
+  const scrollEl = getScrollingElement();
+  return scrollEl.scrollTop;
+}
+
+/**
+ * Current horizontal scroll position.
+ */
+function getScrollPositionX() {
+  const scrollEl = getScrollingElement();
+  return scrollEl.scrollLeft;
+}
+
+/**
+ * High-resolution timestamp.
+ */
+function getTimestamp() {
+  return window.performance && 'now' in window.performance ? performance.now() : new Date().getTime();
+}
+
+/**
+ * Total scrollable document height.
+ */
+function getDocumentHeight() {
+  const body = document.body;
+  const docEl = document.documentElement;
+  return Math.max(body.scrollHeight, body.offsetHeight, body.clientHeight, docEl.scrollHeight, docEl.offsetHeight, docEl.clientHeight);
+}
+
+/**
+ * Total scrollable document width.
+ */
+function getDocumentWidth() {
+  const body = document.body;
+  const docEl = document.documentElement;
+  return Math.max(body.scrollWidth, body.offsetWidth, body.clientWidth, docEl.scrollWidth, docEl.offsetWidth, docEl.clientWidth);
+}
+
+/**
+ * Viewport height.
+ */
+function getWindowHeight() {
+  return window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
+}
+
+/**
+ * Viewport width.
+ */
+function getWindowWidth() {
+  return window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
+}
+
+exports.getDocumentHeight = getDocumentHeight;
+exports.getDocumentWidth = getDocumentWidth;
+exports.getScrollPositionX = getScrollPositionX;
+exports.getScrollPositionY = getScrollPositionY;
+exports.getTimestamp = getTimestamp;
+exports.getWindowHeight = getWindowHeight;
+exports.getWindowWidth = getWindowWidth;
+exports.isNodeOrElement = isNodeOrElement;
+exports.querySelector = querySelector;
+exports.querySelectorAll = querySelectorAll;
+exports.validateSelector = validateSelector;