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

This reverts commit c92f4a5edd.

frontend/node_modules/eslint/lib/unsupported-api.js

@@ -0,0 +1,29 @@
+/**
+ * @fileoverview APIs that are not officially supported by ESLint.
+ *      These APIs may change or be removed at any time. Use at your
+ *      own risk.
+ * @author Nicholas C. Zakas
+ */
+
+"use strict";
+
+//-----------------------------------------------------------------------------
+// Requirements
+//-----------------------------------------------------------------------------
+
+const { FileEnumerator } = require("./cli-engine/file-enumerator");
+const { ESLint: FlatESLint, shouldUseFlatConfig } = require("./eslint/eslint");
+const { LegacyESLint } = require("./eslint/legacy-eslint");
+const builtinRules = require("./rules");
+
+//-----------------------------------------------------------------------------
+// Exports
+//-----------------------------------------------------------------------------
+
+module.exports = {
+    builtinRules,
+    FlatESLint,
+    shouldUseFlatConfig,
+    FileEnumerator,
+    LegacyESLint
+};