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

This reverts commit c92f4a5edd.

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

@@ -0,0 +1,31 @@
+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>
+    );
+  }
+}