add initial marp implementation with sample content and build configuration

node_modules/mj-context-menu/js/item_combo.d.ts

@@ -0,0 +1,27 @@
+import { AbstractVariableItem } from './abstract_variable_item.js';
+import { Menu } from './menu.js';
+import { ParserFactory } from './parser_factory.js';
+export declare class Combo extends AbstractVariableItem<string> {
+    protected role: string;
+    private input;
+    private inputEvent;
+    static fromJson(_factory: ParserFactory, { content: content, variable: variable, id: id }: {
+        content: string;
+        variable: string;
+        id: string;
+    }, menu: Menu): Combo;
+    constructor(menu: Menu, content: string, variable: string, id?: string);
+    executeAction(): void;
+    space(event: KeyboardEvent): void;
+    focus(): void;
+    unfocus(): void;
+    generateHtml(): void;
+    generateSpan(): void;
+    inputKey(_event: KeyboardEvent): void;
+    keydown(event: KeyboardEvent): void;
+    protected updateAria(): void;
+    protected updateSpan(): void;
+    toJson(): {
+        type: string;
+    };
+}