Add TextTransformation plugin to the build config

package.json

@@ -48,6 +48,7 @@
     "@ckeditor/ckeditor5-paragraph": "^17.0.0",
     "@ckeditor/ckeditor5-paste-from-office": "^17.0.0",
     "@ckeditor/ckeditor5-table": "^17.0.0",
+    "@ckeditor/ckeditor5-typing": "^17.0.0",
     "@ckeditor/ckeditor5-theme-lark": "^17.0.0",
     "eslint": "^5.5.0",
     "eslint-config-ckeditor5": "^2.0.0",

src/ckeditor.js

@@ -36,6 +36,7 @@ import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
 import PasteFromOffice from '@ckeditor/ckeditor5-paste-from-office/src/pastefromoffice';
 import Table from '@ckeditor/ckeditor5-table/src/table';
 import TableToolbar from '@ckeditor/ckeditor5-table/src/tabletoolbar';
+import TextTransformation from '@ckeditor/ckeditor5-typing/src/texttransformation';
 
 export default class DecoupledEditor extends DecoupledEditorBase {}
 
@@ -70,7 +71,8 @@ DecoupledEditor.builtinPlugins = [
 	Paragraph,
 	PasteFromOffice,
 	Table,
-	TableToolbar
+	TableToolbar,
+	TextTransformation
 ];
 
 // Editor configuration.