Migrate to ahooks v2

Closes #367 (closed)

Migrate to ahooks v2, as that is relatively easy. See upgrade guide: https://ahooks-v2.js.org/docs/umi-hooks-to-ahooks/

I tried ahooks v3 but it is more involved, so v2 should do for now.

Tested by doing (almost?) everything you can on the website with dev tools open. Got no errors or warnings.