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/merge.d.ts

@@ -0,0 +1,9 @@
+import type { ToJSContext } from '../../nodes/toJS';
+import type { MapLike } from '../../nodes/YAMLMap';
+import type { ScalarTag } from '../types';
+export declare const merge: ScalarTag & {
+    identify(value: unknown): boolean;
+    test: RegExp;
+};
+export declare const isMergeKey: (ctx: ToJSContext | undefined, key: unknown) => boolean | undefined;
+export declare function addMergeToJSMap(ctx: ToJSContext | undefined, map: MapLike, value: unknown): void;