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

frontend/node_modules/reusify/benchmarks/fib.js

@@ -1,13 +0,0 @@
-'use strict'
-
-function fib (num) {
-  var fib = []
-
-  fib[0] = 0
-  fib[1] = 1
-  for (var i = 2; i <= num; i++) {
-    fib[i] = fib[i - 2] + fib[i - 1]
-  }
-}
-
-module.exports = fib