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

This reverts commit c92f4a5edd.

frontend/node_modules/preact/compat/src/suspense.d.ts

@@ -0,0 +1,15 @@
+import { Component, ComponentChild, ComponentChildren } from '../../src';
+
+//
+// Suspense/lazy
+// -----------------------------------
+export function lazy<T>(loader: () => Promise<{ default: T } | T>): T;
+
+export interface SuspenseProps {
+	children?: ComponentChildren;
+	fallback: ComponentChildren;
+}
+
+export class Suspense extends Component<SuspenseProps> {
+	render(): ComponentChild;
+}