Add supporting themes required for Lotusdocs

themes/twbs/bootstrap/js/index.umd.js

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+/**
+ * --------------------------------------------------------------------------
+ * Bootstrap index.umd.js
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * --------------------------------------------------------------------------
+ */
+
+import Alert from './src/alert.js'
+import Button from './src/button.js'
+import Carousel from './src/carousel.js'
+import Collapse from './src/collapse.js'
+import Dropdown from './src/dropdown.js'
+import Modal from './src/modal.js'
+import Offcanvas from './src/offcanvas.js'
+import Popover from './src/popover.js'
+import ScrollSpy from './src/scrollspy.js'
+import Tab from './src/tab.js'
+import Toast from './src/toast.js'
+import Tooltip from './src/tooltip.js'
+
+export default {
+  Alert,
+  Button,
+  Carousel,
+  Collapse,
+  Dropdown,
+  Modal,
+  Offcanvas,
+  Popover,
+  ScrollSpy,
+  Tab,
+  Toast,
+  Tooltip
+}