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diff --git a/vendor/twbs/bootstrap/js/src/util/index.js b/vendor/twbs/bootstrap/js/src/util/index.js
new file mode 100644
index 000000000..7c317b016
--- /dev/null
+++ b/vendor/twbs/bootstrap/js/src/util/index.js
@@ -0,0 +1,324 @@
+import SelectorEngine from '../dom/selector-engine'
+
+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap (v5.0.2): util/index.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+const MAX_UID = 1000000
+const MILLISECONDS_MULTIPLIER = 1000
+const TRANSITION_END = 'transitionend'
+
+// Shoutout AngusCroll (https://goo.gl/pxwQGp)
+const toType = obj => {
+  if (obj === null || obj === undefined) {
+    return `${obj}`
+  }
+
+  return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase()
+}
+
+/**
+ * --------------------------------------------------------------------------
+ * Public Util Api
+ * --------------------------------------------------------------------------
+ */
+
+const getUID = prefix => {
+  do {
+    prefix += Math.floor(Math.random() * MAX_UID)
+  } while (document.getElementById(prefix))
+
+  return prefix
+}
+
+const getSelector = element => {
+  let selector = element.getAttribute('data-bs-target')
+
+  if (!selector || selector === '#') {
+    let hrefAttr = element.getAttribute('href')
+
+    // The only valid content that could double as a selector are IDs or classes,
+    // so everything starting with `#` or `.`. If a "real" URL is used as the selector,
+    // `document.querySelector` will rightfully complain it is invalid.
+    // See https://github.com/twbs/bootstrap/issues/32273
+    if (!hrefAttr || (!hrefAttr.includes('#') && !hrefAttr.startsWith('.'))) {
+      return null
+    }
+
+    // Just in case some CMS puts out a full URL with the anchor appended
+    if (hrefAttr.includes('#') && !hrefAttr.startsWith('#')) {
+      hrefAttr = `#${hrefAttr.split('#')[1]}`
+    }
+
+    selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : null
+  }
+
+  return selector
+}
+
+const getSelectorFromElement = element => {
+  const selector = getSelector(element)
+
+  if (selector) {
+    return document.querySelector(selector) ? selector : null
+  }
+
+  return null
+}
+
+const getElementFromSelector = element => {
+  const selector = getSelector(element)
+
+  return selector ? document.querySelector(selector) : null
+}
+
+const getTransitionDurationFromElement = element => {
+  if (!element) {
+    return 0
+  }
+
+  // Get transition-duration of the element
+  let { transitionDuration, transitionDelay } = window.getComputedStyle(element)
+
+  const floatTransitionDuration = Number.parseFloat(transitionDuration)
+  const floatTransitionDelay = Number.parseFloat(transitionDelay)
+
+  // Return 0 if element or transition duration is not found
+  if (!floatTransitionDuration && !floatTransitionDelay) {
+    return 0
+  }
+
+  // If multiple durations are defined, take the first
+  transitionDuration = transitionDuration.split(',')[0]
+  transitionDelay = transitionDelay.split(',')[0]
+
+  return (Number.parseFloat(transitionDuration) + Number.parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER
+}
+
+const triggerTransitionEnd = element => {
+  element.dispatchEvent(new Event(TRANSITION_END))
+}
+
+const isElement = obj => {
+  if (!obj || typeof obj !== 'object') {
+    return false
+  }
+
+  if (typeof obj.jquery !== 'undefined') {
+    obj = obj[0]
+  }
+
+  return typeof obj.nodeType !== 'undefined'
+}
+
+const getElement = obj => {
+  if (isElement(obj)) { // it's a jQuery object or a node element
+    return obj.jquery ? obj[0] : obj
+  }
+
+  if (typeof obj === 'string' && obj.length > 0) {
+    return SelectorEngine.findOne(obj)
+  }
+
+  return null
+}
+
+const typeCheckConfig = (componentName, config, configTypes) => {
+  Object.keys(configTypes).forEach(property => {
+    const expectedTypes = configTypes[property]
+    const value = config[property]
+    const valueType = value && isElement(value) ? 'element' : toType(value)
+
+    if (!new RegExp(expectedTypes).test(valueType)) {
+      throw new TypeError(
+        `${componentName.toUpperCase()}: Option "${property}" provided type "${valueType}" but expected type "${expectedTypes}".`
+      )
+    }
+  })
+}
+
+const isVisible = element => {
+  if (!isElement(element) || element.getClientRects().length === 0) {
+    return false
+  }
+
+  return getComputedStyle(element).getPropertyValue('visibility') === 'visible'
+}
+
+const isDisabled = element => {
+  if (!element || element.nodeType !== Node.ELEMENT_NODE) {
+    return true
+  }
+
+  if (element.classList.contains('disabled')) {
+    return true
+  }
+
+  if (typeof element.disabled !== 'undefined') {
+    return element.disabled
+  }
+
+  return element.hasAttribute('disabled') && element.getAttribute('disabled') !== 'false'
+}
+
+const findShadowRoot = element => {
+  if (!document.documentElement.attachShadow) {
+    return null
+  }
+
+  // Can find the shadow root otherwise it'll return the document
+  if (typeof element.getRootNode === 'function') {
+    const root = element.getRootNode()
+    return root instanceof ShadowRoot ? root : null
+  }
+
+  if (element instanceof ShadowRoot) {
+    return element
+  }
+
+  // when we don't find a shadow root
+  if (!element.parentNode) {
+    return null
+  }
+
+  return findShadowRoot(element.parentNode)
+}
+
+const noop = () => {}
+
+const reflow = element => element.offsetHeight
+
+const getjQuery = () => {
+  const { jQuery } = window
+
+  if (jQuery && !document.body.hasAttribute('data-bs-no-jquery')) {
+    return jQuery
+  }
+
+  return null
+}
+
+const DOMContentLoadedCallbacks = []
+
+const onDOMContentLoaded = callback => {
+  if (document.readyState === 'loading') {
+    // add listener on the first call when the document is in loading state
+    if (!DOMContentLoadedCallbacks.length) {
+      document.addEventListener('DOMContentLoaded', () => {
+        DOMContentLoadedCallbacks.forEach(callback => callback())
+      })
+    }
+
+    DOMContentLoadedCallbacks.push(callback)
+  } else {
+    callback()
+  }
+}
+
+const isRTL = () => document.documentElement.dir === 'rtl'
+
+const defineJQueryPlugin = plugin => {
+  onDOMContentLoaded(() => {
+    const $ = getjQuery()
+    /* istanbul ignore if */
+    if ($) {
+      const name = plugin.NAME
+      const JQUERY_NO_CONFLICT = $.fn[name]
+      $.fn[name] = plugin.jQueryInterface
+      $.fn[name].Constructor = plugin
+      $.fn[name].noConflict = () => {
+        $.fn[name] = JQUERY_NO_CONFLICT
+        return plugin.jQueryInterface
+      }
+    }
+  })
+}
+
+const execute = callback => {
+  if (typeof callback === 'function') {
+    callback()
+  }
+}
+
+const executeAfterTransition = (callback, transitionElement, waitForTransition = true) => {
+  if (!waitForTransition) {
+    execute(callback)
+    return
+  }
+
+  const durationPadding = 5
+  const emulatedDuration = getTransitionDurationFromElement(transitionElement) + durationPadding
+
+  let called = false
+
+  const handler = ({ target }) => {
+    if (target !== transitionElement) {
+      return
+    }
+
+    called = true
+    transitionElement.removeEventListener(TRANSITION_END, handler)
+    execute(callback)
+  }
+
+  transitionElement.addEventListener(TRANSITION_END, handler)
+  setTimeout(() => {
+    if (!called) {
+      triggerTransitionEnd(transitionElement)
+    }
+  }, emulatedDuration)
+}
+
+/**
+ * Return the previous/next element of a list.
+ *
+ * @param {array} list    The list of elements
+ * @param activeElement   The active element
+ * @param shouldGetNext   Choose to get next or previous element
+ * @param isCycleAllowed
+ * @return {Element|elem} The proper element
+ */
+const getNextActiveElement = (list, activeElement, shouldGetNext, isCycleAllowed) => {
+  let index = list.indexOf(activeElement)
+
+  // if the element does not exist in the list return an element depending on the direction and if cycle is allowed
+  if (index === -1) {
+    return list[!shouldGetNext && isCycleAllowed ? list.length - 1 : 0]
+  }
+
+  const listLength = list.length
+
+  index += shouldGetNext ? 1 : -1
+
+  if (isCycleAllowed) {
+    index = (index + listLength) % listLength
+  }
+
+  return list[Math.max(0, Math.min(index, listLength - 1))]
+}
+
+export {
+  getElement,
+  getUID,
+  getSelectorFromElement,
+  getElementFromSelector,
+  getTransitionDurationFromElement,
+  triggerTransitionEnd,
+  isElement,
+  typeCheckConfig,
+  isVisible,
+  isDisabled,
+  findShadowRoot,
+  noop,
+  getNextActiveElement,
+  reflow,
+  getjQuery,
+  onDOMContentLoaded,
+  isRTL,
+  defineJQueryPlugin,
+  execute,
+  executeAfterTransition
+}