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

frontend/node_modules/react-dropzone/examples/forms/README.md

@@ -1,69 +0,0 @@
-React-dropzone does not submit the files in form submissions by default. 
-
-If you need this behavior, you can add a hidden file input, and set the files into it. 
-
-
-```jsx harmony
-import React, {useRef} from 'react';
-import {useDropzone} from 'react-dropzone';
-
-function Dropzone(props) {
-  const {required, name} = props; 
-
-  const hiddenInputRef = useRef(null);
-
-  const {getRootProps, getInputProps, open, acceptedFiles} = useDropzone({
-    onDrop: (incomingFiles) => {
-      if (hiddenInputRef.current) {
-        // Note the specific way we need to munge the file into the hidden input
-        // https://stackoverflow.com/a/68182158/1068446
-        const dataTransfer = new DataTransfer();
-        incomingFiles.forEach((v) => {
-          dataTransfer.items.add(v);
-        });
-        hiddenInputRef.current.files = dataTransfer.files;
-      }
-    }
-  });
-
-  const files = acceptedFiles.map(file => (
-    <li key={file.path}>
-      {file.path} - {file.size} bytes
-    </li>
-  ));
-
-  return (
-    <div className="container">
-      <div {...getRootProps({className: 'dropzone'})}>
-        {/*
-          Add a hidden file input 
-          Best to use opacity 0, so that the required validation message will appear on form submission
-        */}
-        <input type ="file" name={name} required={required} style ={{opacity: 0}} ref={hiddenInputRef}/>
-        <input {...getInputProps()} />
-        <p>Drag 'n' drop some files here</p>
-        <button type="button" onClick={open}>
-          Open File Dialog
-        </button>
-      </div>
-      <aside>
-        <h4>Files</h4>
-        <ul>{files}</ul>
-      </aside>
-    </div>
-  );
-}
-
-
-<form onSubmit={(e) => {
-  e.preventDefault(); 
-  
-  // Now get the form data as you regularly would
-  const formData = new FormData(e.currentTarget);
-  const file =  formData.get("my-file");
-  alert(file.name); 
-}}>
-  <Dropzone name ="my-file" required/>
-  <button type="submit">Submit</button>
-</form>
-```