[Feature request] Improving Safari PWA support

[Mister-Hope]

Clear and concise description of the problem

Safari used to use a set of private meta tags staring with apple- to provide pwa support.

But as web.dev point out: https://web.dev/learn/pwa/web-app-manifest?hl=zh-cn#designing_your_pwa_experience, these tags are already deprecated.

I only found some archived docs about these tags:

https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html

But I did not find anything about latest safari support with PWA and whether these meta tags are still working.

Suggested solution

Confirm the support condition and update @vuepress/plugin-pwa

Alternative

No response

Additional context

No response