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

frontend/node_modules/eslint/lib/rules/utils/unicode/is-combining-character.js

@@ -1,13 +0,0 @@
-/**
- * @author Toru Nagashima <https://github.com/mysticatea>
- */
-"use strict";
-
-/**
- * Check whether a given character is a combining mark or not.
- * @param {number} codePoint The character code to check.
- * @returns {boolean} `true` if the character belongs to the category, any of `Mc`, `Me`, and `Mn`.
- */
-module.exports = function isCombiningCharacter(codePoint) {
-    return /^[\p{Mc}\p{Me}\p{Mn}]$/u.test(String.fromCodePoint(codePoint));
-};