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

This reverts commit c92f4a5edd.

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

@@ -0,0 +1,34 @@
+import { createPlugin } from '@fullcalendar/core/index.js';
+import { DayTimeColsView } from './internal.js';
+import '@fullcalendar/core/internal.js';
+import '@fullcalendar/core/preact.js';
+import '@fullcalendar/daygrid/internal.js';
+
+const OPTION_REFINERS = {
+    allDaySlot: Boolean,
+};
+
+var index = createPlugin({
+    name: '@fullcalendar/timegrid',
+    initialView: 'timeGridWeek',
+    optionRefiners: OPTION_REFINERS,
+    views: {
+        timeGrid: {
+            component: DayTimeColsView,
+            usesMinMaxTime: true,
+            allDaySlot: true,
+            slotDuration: '00:30:00',
+            slotEventOverlap: true, // a bad name. confused with overlap/constraint system
+        },
+        timeGridDay: {
+            type: 'timeGrid',
+            duration: { days: 1 },
+        },
+        timeGridWeek: {
+            type: 'timeGrid',
+            duration: { weeks: 1 },
+        },
+    },
+});
+
+export { index as default };