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

frontend/node_modules/@svgdotjs/svg.js/.config/pretest.js

@@ -1,22 +0,0 @@
-/* global XMLHttpRequest */
-'use strict'
-
-function get(uri) {
-  var xhr = new XMLHttpRequest()
-  xhr.open('GET', uri, false)
-  xhr.send()
-  if (xhr.status !== 200) {
-    console.error('SVG.js fixture could not be loaded. Tests will fail.')
-  }
-  return xhr.responseText
-}
-
-function main() {
-  var style = document.createElement('style')
-  document.head.appendChild(style)
-  style.sheet.insertRule(get('/fixtures/fixture.css'), 0)
-
-  document.body.innerHTML = get('/fixtures/fixture.svg')
-}
-
-main()