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

frontend/node_modules/@jridgewell/set-array/README.md

@@ -1,37 +0,0 @@
-# @jridgewell/set-array
-
-> Like a Set, but provides the index of the `key` in the backing array
-
-This is designed to allow synchronizing a second array with the contents of the backing array, like
-how in a sourcemap `sourcesContent[i]` is the source content associated with `source[i]`, and there
-are never duplicates.
-
-## Installation
-
-```sh
-npm install @jridgewell/set-array
-```
-
-## Usage
-
-```js
-import { SetArray, get, put, pop } from '@jridgewell/set-array';
-
-const sa = new SetArray();
-
-let index = put(sa, 'first');
-assert.strictEqual(index, 0);
-
-index = put(sa, 'second');
-assert.strictEqual(index, 1);
-
-assert.deepEqual(sa.array, [ 'first', 'second' ]);
-
-index = get(sa, 'first');
-assert.strictEqual(index, 0);
-
-pop(sa);
-index = get(sa, 'second');
-assert.strictEqual(index, undefined);
-assert.deepEqual(sa.array, [ 'first' ]);
-```