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

This reverts commit c92f4a5edd.

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

@@ -0,0 +1,41 @@
+'use strict';
+
+var map = require('../common/map.js');
+var _null = require('../common/null.js');
+var seq = require('../common/seq.js');
+var string = require('../common/string.js');
+var binary = require('./binary.js');
+var bool = require('./bool.js');
+var float = require('./float.js');
+var int = require('./int.js');
+var merge = require('./merge.js');
+var omap = require('./omap.js');
+var pairs = require('./pairs.js');
+var set = require('./set.js');
+var timestamp = require('./timestamp.js');
+
+const schema = [
+    map.map,
+    seq.seq,
+    string.string,
+    _null.nullTag,
+    bool.trueTag,
+    bool.falseTag,
+    int.intBin,
+    int.intOct,
+    int.int,
+    int.intHex,
+    float.floatNaN,
+    float.floatExp,
+    float.float,
+    binary.binary,
+    merge.merge,
+    omap.omap,
+    pairs.pairs,
+    set.set,
+    timestamp.intTime,
+    timestamp.floatTime,
+    timestamp.timestamp
+];
+
+exports.schema = schema;