Revert "feat: ui.markdown component (#903)"

This reverts commit 0d1eea8.

jest.config.base.cjs

@@ -1,48 +1,11 @@
 const path = require('path');
 
-// List of node_modules that need to be transformed from ESM to CJS for jest to work
-const nodeModulesToTransform = [
-  '@deephaven',
-  'nanoid',
-  // monaco
-  'monaco-editor',
-  // plotly.js dependencies
-  'd3-interpolate',
-  'd3-color',
-  // react-markdown and its dependencies
-  'react-markdown',
-  'vfile',
-  'vfile-message',
-  'unist-util.*',
-  'unified',
-  'bail',
-  'is-plain-obj',
-  'trough',
-  'remark.*',
-  'mdast-util.*',
-  'micromark.*',
-  'decode-named-character-reference',
-  'trim-lines',
-  'property-information',
-  'hast-util.*',
-  '.*separated-tokens',
-  'ccount',
-  'devlop',
-  'escape-string-regexp',
-  'markdown-table',
-  'zwitch',
-  'longest-streak',
-  'rehype.*',
-  'web-namespaces',
-  'hastscript',
-];
-
 module.exports = {
   transform: {
     '^.+\\.(ts|tsx|js|jsx)$': ['babel-jest', { rootMode: 'upward' }],
   },
   transformIgnorePatterns: [
-    `node_modules/(?!(${nodeModulesToTransform.join('|')})/)`,
+    '/node_modules/(?!(@deephaven|monaco-editor|d3-interpolate|d3-color|nanoid)/)',
   ],
   moduleNameMapper: {
     'theme-([^/]+?)\\.css(\\?(?:inline|raw))?$': path.join(