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

frontend/node_modules/@fullcalendar/react/dist/index.d.ts

@@ -1,26 +0,0 @@
-import React, { Component } from 'react';
-import { CalendarOptions, CalendarApi } from '@fullcalendar/core';
-import { CustomRendering } from '@fullcalendar/core/internal';
-interface CalendarState {
-    customRenderingMap: Map<string, CustomRendering<any>>;
-}
-export default class FullCalendar extends Component<CalendarOptions, CalendarState> {
-    static act: typeof runNow;
-    private elRef;
-    private calendar;
-    private handleCustomRendering;
-    private resizeId;
-    private isUpdating;
-    private isUnmounting;
-    state: CalendarState;
-    render(): React.JSX.Element;
-    componentDidMount(): void;
-    componentDidUpdate(): void;
-    componentWillUnmount(): void;
-    requestResize: () => void;
-    doResize(): void;
-    cancelResize(): void;
-    getApi(): CalendarApi;
-}
-declare function runNow(f: () => void): void;
-export {};