Started on general window layout

src-web/components/IconButton.tsx

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+import { forwardRef } from 'react';
+import { Icon, IconProps } from './Icon';
+import { Button, ButtonProps } from './Button';
+
+type Props = ButtonProps & IconProps;
+
+export const IconButton = forwardRef<HTMLButtonElement, Props>(function IconButton(
+  { icon, ...props }: Props,
+  ref,
+) {
+  return (
+    <Button ref={ref} className="group" {...props}>
+      <Icon icon={icon} className="text-gray-700 group-hover:text-gray-900" />
+    </Button>
+  );
+});