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

frontend/node_modules/graphemer/lib/GraphemerIterator.d.ts

@@ -1,22 +0,0 @@
-/**
- * GraphemerIterator
- *
- * Takes a string and a "BreakHandler" method during initialisation
- * and creates an iterable object that returns individual graphemes.
- *
- * @param str {string}
- * @return GraphemerIterator
- */
-declare class GraphemerIterator implements Iterator<string> {
-    private _index;
-    private _str;
-    private _nextBreak;
-    constructor(str: string, nextBreak: (str: string, index: number) => number);
-    [Symbol.iterator](): this;
-    next(): {
-        value: string;
-        done: boolean;
-    };
-}
-export default GraphemerIterator;
-//# sourceMappingURL=GraphemerIterator.d.ts.map