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

This reverts commit c92f4a5edd.

frontend/node_modules/file-selector/dist/file.d.ts

@@ -0,0 +1,7 @@
+export declare const COMMON_MIME_TYPES: Map<string, string>;
+export declare function toFileWithPath(file: FileWithPath, path?: string, h?: FileSystemHandle): FileWithPath;
+export interface FileWithPath extends File {
+    readonly path?: string;
+    readonly handle?: FileSystemFileHandle;
+    readonly relativePath?: string;
+}