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

This reverts commit c92f4a5edd.

frontend/node_modules/acorn-jsx/index.d.ts

@@ -0,0 +1,12 @@
+import { Parser } from 'acorn' 
+
+declare const jsx: (options?: jsx.Options) => (BaseParser: typeof Parser) => typeof Parser;
+
+declare namespace jsx {
+  interface Options {
+    allowNamespacedObjects?: boolean;
+    allowNamespaces?: boolean;
+  }
+}
+
+export = jsx;