Numerous Bug Fixes

frontend/node_modules/make-cancellable-promise/README.md

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+[![npm](https://img.shields.io/npm/v/make-cancellable-promise.svg)](https://www.npmjs.com/package/make-cancellable-promise) ![downloads](https://img.shields.io/npm/dt/make-cancellable-promise.svg) [![CI](https://github.com/wojtekmaj/make-cancellable-promise/actions/workflows/ci.yml/badge.svg)](https://github.com/wojtekmaj/make-cancellable-promise/actions)
+
+# Make-Cancellable-Promise
+
+Make any Promise cancellable.
+
+## tl;dr
+
+- Install by executing `npm install make-cancellable-promise` or `yarn add make-cancellable-promise`.
+- Import by adding `import makeCancellablePromise from 'make-cancellable-promise`.
+- Do stuff with it!
+  ```ts
+  const { promise, cancel } = makeCancellablePromise(myPromise);
+  ```
+
+## User guide
+
+### makeCancellablePromise(myPromise)
+
+A function that returns an object with two properties:
+
+`promise` and `cancel`. `promise` is a wrapped around your promise. `cancel` is a function which stops `.then()` and `.catch()` from working on `promise`, even if promise passed to `makeCancellablePromise` resolves or rejects.
+
+#### Usage
+
+```ts
+const { promise, cancel } = makeCancellablePromise(myPromise);
+```
+
+Typically, you'd want to use `makeCancellablePromise` in React components. If you call `setState` on an unmounted component, React will throw an error.
+
+Here's how you can use `makeCancellablePromise` with React:
+
+```tsx
+function MyComponent() {
+  const [status, setStatus] = useState('initial');
+
+  useEffect(() => {
+    const { promise, cancel } = makeCancellable(fetchData());
+
+    promise.then(() => setStatus('success')).catch(() => setStatus('error'));
+
+    return () => {
+      cancel();
+    };
+  }, []);
+
+  const text = (() => {
+    switch (status) {
+      case 'pending':
+        return 'Fetching…';
+      case 'success':
+        return 'Success';
+      case 'error':
+        return 'Error!';
+      default:
+        return 'Click to fetch';
+    }
+  })();
+
+  return <p>{text}</p>;
+}
+```
+
+## License
+
+The MIT License.
+
+## Author
+
+<table>
+  <tr>
+    <td >
+      <img src="https://avatars.githubusercontent.com/u/5426427?v=4&s=128" width="64" height="64" alt="Wojciech Maj">
+    </td>
+    <td>
+      <a href="https://github.com/wojtekmaj">Wojciech Maj</a>
+    </td>
+  </tr>
+</table>