Grabbed dndbeyond's source code

```
~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js
```

ddb_main/subApps/builder/components/Spinner/Spinner.tsx

@@ -0,0 +1,21 @@
+import clsx from "clsx";
+import { FC, HTMLAttributes, ReactNode } from "react";
+
+import { AnimatedLoadingRingSvg } from "~/tools/js/smartComponents/Svg";
+
+interface SpinnerProps extends HTMLAttributes<HTMLDivElement> {
+  label?: ReactNode;
+}
+
+export const Spinner: FC<SpinnerProps> = ({
+  label = "Loading",
+  className,
+  ...props
+}) => {
+  return (
+    <div className={clsx(["ddbc-loading-placeholder", className])} {...props}>
+      <AnimatedLoadingRingSvg className="ddbc-loading-placeholder__icon" />
+      <span className="ddbc-loading-placeholder__label">{label}</span>
+    </div>
+  );
+};