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

frontend/node_modules/yaml/browser/dist/schema/yaml-1.1/schema.js

@@ -1,39 +0,0 @@
-import { map } from '../common/map.js';
-import { nullTag } from '../common/null.js';
-import { seq } from '../common/seq.js';
-import { string } from '../common/string.js';
-import { binary } from './binary.js';
-import { trueTag, falseTag } from './bool.js';
-import { floatNaN, floatExp, float } from './float.js';
-import { intBin, intOct, int, intHex } from './int.js';
-import { merge } from './merge.js';
-import { omap } from './omap.js';
-import { pairs } from './pairs.js';
-import { set } from './set.js';
-import { intTime, floatTime, timestamp } from './timestamp.js';
-
-const schema = [
-    map,
-    seq,
-    string,
-    nullTag,
-    trueTag,
-    falseTag,
-    intBin,
-    intOct,
-    int,
-    intHex,
-    floatNaN,
-    floatExp,
-    float,
-    binary,
-    merge,
-    omap,
-    pairs,
-    set,
-    intTime,
-    floatTime,
-    timestamp
-];
-
-export { schema };