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

This reverts commit c92f4a5edd.

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

@@ -0,0 +1,38 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var index_cjs = require('@fullcalendar/core/index.cjs');
+var internalCommon = require('./internal.cjs');
+require('@fullcalendar/core/internal.cjs');
+require('@fullcalendar/core/preact.cjs');
+
+var index = index_cjs.createPlugin({
+    name: '@fullcalendar/daygrid',
+    initialView: 'dayGridMonth',
+    views: {
+        dayGrid: {
+            component: internalCommon.DayGridView,
+            dateProfileGeneratorClass: internalCommon.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 },
+        },
+    },
+});
+
+exports["default"] = index;