feat: enhance rich text editor with new features and plugins

- Added support for additional Lexical plugins: link, markdown, table, and checklist.
- Implemented Markdown shortcuts and transformers for horizontal rules and tables.
- Updated editor theme and styles to accommodate new elements like tables and links.
- Improved the overall functionality of the rich text editor with new matchers for URLs and emails.

src/editor/themes/EditorTheme.ts

@@ -18,6 +18,8 @@ const theme: EditorThemeClasses = {
     ol: 'editor-list-ol',
     ul: 'editor-list-ul',
     listitem: 'editor-listitem',
+    listitemChecked: 'editor-listitem-checked',
+    listitemUnchecked: 'editor-listitem-unchecked',
   },
   text: {
     bold: 'editor-text-bold',
@@ -28,6 +30,11 @@ const theme: EditorThemeClasses = {
   },
   code: 'editor-code',
   codeHighlight: {},
+  link: 'editor-link',
+  table: 'editor-table',
+  tableCell: 'editor-table-cell',
+  tableCellHeader: 'editor-table-cell-header',
+  hr: 'editor-hr',
 };
 
 export default theme;