Be compatible with the esm-only unocss.

[LoTwT]

description

Hi, @webfansplz and @alexzhang1030 .

Unocss has just changed to esm-only since v0.59.0.

This commit 988ca80 has updated unocss to v0.59.0. So there have been some errors in the repo, such as running the playground/basic.

It's urgent to check codes and be compatible with the esm-only unocss.