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

This reverts commit c92f4a5edd.

frontend/node_modules/react-router/dist/development/data-CQbyyGzl.d.ts

@@ -0,0 +1,11 @@
+/**
+ * An object of unknown type for route loaders and actions provided by the
+ * server's `getLoadContext()` function.  This is defined as an empty interface
+ * specifically so apps can leverage declaration merging to augment this type
+ * globally: https://www.typescriptlang.org/docs/handbook/declaration-merging.html
+ */
+interface AppLoadContext {
+    [key: string]: unknown;
+}
+
+export type { AppLoadContext as A };