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

frontend/node_modules/react-dropzone/typings/tests/events.tsx

@@ -1,31 +0,0 @@
-import React from "react";
-import Dropzone from "../../";
-
-export class Events extends React.Component {
-  render() {
-    return (
-      <section>
-        <div className="dropzone">
-          <Dropzone
-            onDrop={(acceptedFiles, fileRejections, event) =>
-              console.log(acceptedFiles, fileRejections, event)
-            }
-            onDragEnter={(event) => console.log(event)}
-            onDragOver={(event) => console.log(event)}
-            onDragLeave={(event) => console.log(event)}
-          >
-            {({ getRootProps, getInputProps }) => (
-              <div {...getRootProps()}>
-                <input {...getInputProps()} />
-                <p>
-                  Try dropping some files here, or click to select files to
-                  upload.
-                </p>
-              </div>
-            )}
-          </Dropzone>
-        </div>
-      </section>
-    );
-  }
-}