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

frontend/node_modules/eslint/lib/shared/option-utils.js

@@ -1,56 +0,0 @@
-/**
- * @fileoverview Utilities to operate on option objects.
- * @author Josh Goldberg
- */
-
-"use strict";
-
-/**
- * Determines whether any of input's properties are different
- * from values that already exist in original.
- * @template T
- * @param {Partial<T>} input New value.
- * @param {T} original Original value.
- * @returns {boolean} Whether input includes an explicit difference.
- */
-function containsDifferentProperty(input, original) {
-    if (input === original) {
-        return false;
-    }
-
-    if (
-        typeof input !== typeof original ||
-        Array.isArray(input) !== Array.isArray(original)
-    ) {
-        return true;
-    }
-
-    if (Array.isArray(input)) {
-        return (
-            input.length !== original.length ||
-            input.some((value, i) =>
-                containsDifferentProperty(value, original[i]))
-        );
-    }
-
-    if (typeof input === "object") {
-        if (input === null || original === null) {
-            return true;
-        }
-
-        const inputKeys = Object.keys(input);
-        const originalKeys = Object.keys(original);
-
-        return inputKeys.length !== originalKeys.length || inputKeys.some(
-            inputKey =>
-                !Object.hasOwn(original, inputKey) ||
-                containsDifferentProperty(input[inputKey], original[inputKey])
-        );
-    }
-
-    return true;
-}
-
-module.exports = {
-    containsDifferentProperty
-};