chore(ckeditor5/plugins): integrate markdown inline

packages/ckeditor5/src/plugins/markdownimport.ts

@@ -0,0 +1,25 @@
+import { ButtonView, Plugin } from 'ckeditor5';
+import markdownIcon from '../icons/markdown-mark.svg?raw';
+
+export default class MarkdownImportPlugin extends Plugin {
+	init() {
+		const editor = this.editor;
+
+		editor.ui.componentFactory.add( 'markdownImport', locale => {
+			const view = new ButtonView( locale );
+
+			view.set( {
+				label: 'Markdown import from clipboard',
+				icon: markdownIcon,
+				tooltip: true
+			} );
+
+			// Callback executed once the image is clicked.
+			view.on( 'execute', () => {
+				glob.importMarkdownInline();
+			} );
+
+			return view;
+		} );
+	}
+}