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

frontend/node_modules/isexe/windows.js

@@ -1,42 +0,0 @@
-module.exports = isexe
-isexe.sync = sync
-
-var fs = require('fs')
-
-function checkPathExt (path, options) {
-  var pathext = options.pathExt !== undefined ?
-    options.pathExt : process.env.PATHEXT
-
-  if (!pathext) {
-    return true
-  }
-
-  pathext = pathext.split(';')
-  if (pathext.indexOf('') !== -1) {
-    return true
-  }
-  for (var i = 0; i < pathext.length; i++) {
-    var p = pathext[i].toLowerCase()
-    if (p && path.substr(-p.length).toLowerCase() === p) {
-      return true
-    }
-  }
-  return false
-}
-
-function checkStat (stat, path, options) {
-  if (!stat.isSymbolicLink() && !stat.isFile()) {
-    return false
-  }
-  return checkPathExt(path, options)
-}
-
-function isexe (path, options, cb) {
-  fs.stat(path, function (er, stat) {
-    cb(er, er ? false : checkStat(stat, path, options))
-  })
-}
-
-function sync (path, options) {
-  return checkStat(fs.statSync(path), path, options)
-}