SEO: better title of package page

now different packages have the same HTML title, it's bad for SEO.

suggestion: show package name and version in HTML title.

docs: https://developers.google.com/search/docs/advanced/appearance/title-link

https://jihulab.com/1024town/china-speed/-/packages/1037

https://jihulab.com/1024town/china-speed/-/packages/1007