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

This reverts commit c92f4a5edd.

frontend/node_modules/clsx/clsx.d.ts

@@ -0,0 +1,10 @@
+declare namespace clsx {
+	type ClassValue = ClassArray | ClassDictionary | string | number | bigint | null | boolean | undefined;
+	type ClassDictionary = Record<string, any>;
+	type ClassArray = ClassValue[];
+	function clsx(...inputs: ClassValue[]): string;
+}
+
+declare function clsx(...inputs: clsx.ClassValue[]): string;
+
+export = clsx;