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

frontend/node_modules/@babel/runtime/helpers/createClass.js

@@ -1,13 +0,0 @@
-var toPropertyKey = require("./toPropertyKey.js");
-function _defineProperties(e, r) {
-  for (var t = 0; t < r.length; t++) {
-    var o = r[t];
-    o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, toPropertyKey(o.key), o);
-  }
-}
-function _createClass(e, r, t) {
-  return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", {
-    writable: !1
-  }), e;
-}
-module.exports = _createClass, module.exports.__esModule = true, module.exports["default"] = module.exports;