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

This reverts commit c92f4a5edd.

frontend/node_modules/@fullcalendar/daygrid/index.js

@@ -0,0 +1,34 @@
+import { createPlugin } from '@fullcalendar/core/index.js';
+import { DayGridView as DayTableView, TableDateProfileGenerator } from './internal.js';
+import '@fullcalendar/core/internal.js';
+import '@fullcalendar/core/preact.js';
+
+var index = createPlugin({
+    name: '@fullcalendar/daygrid',
+    initialView: 'dayGridMonth',
+    views: {
+        dayGrid: {
+            component: DayTableView,
+            dateProfileGeneratorClass: TableDateProfileGenerator,
+        },
+        dayGridDay: {
+            type: 'dayGrid',
+            duration: { days: 1 },
+        },
+        dayGridWeek: {
+            type: 'dayGrid',
+            duration: { weeks: 1 },
+        },
+        dayGridMonth: {
+            type: 'dayGrid',
+            duration: { months: 1 },
+            fixedWeekCount: true,
+        },
+        dayGridYear: {
+            type: 'dayGrid',
+            duration: { years: 1 },
+        },
+    },
+});
+
+export { index as default };