Add yet-another-react-lightbox package and update .gitignore to exclude node_modules

frontend/node_modules/eslint/lib/shared/directives.js

@@ -1,15 +0,0 @@
-/**
- * @fileoverview Common utils for directives.
- *
- * This file contains only shared items for directives.
- * If you make a utility for rules, please see `../rules/utils/ast-utils.js`.
- *
- * @author gfyoung <https://github.com/gfyoung>
- */
-"use strict";
-
-const directivesPattern = /^(eslint(?:-env|-enable|-disable(?:(?:-next)?-line)?)?|exported|globals?)(?:\s|$)/u;
-
-module.exports = {
-    directivesPattern
-};