iOS/iPad splash screens new feature proposal

[userquin]

The new feature is about the splash screens head links:

• [ ] allow add head links to html file entry/entries
• [ ] allow generate framework script (vue, react, svelte...): for example, unhead for Vue
• [ ] allow generate meta framework script (nuxt, sveltekit, astro...)

From this comment: https://github.com/vite-pwa/assets-generator/issues/7#issuecomment-1685749628