feat!: add Vite 6 Environment API support

[userquin]

Description

2024-11-15: this PR only tested with VanillaJS/TypeScript via test:vite-ecosystem-ci script, rn cannot be tested with lib frameworks, Vite ecosystem-ci is failing for vue and svelte (preparing external tests for react).

Tested with:

• VanillaJS/Typescript app with Vite 3, 4, 5 and 6 including on the fly PWA Assets HMR.
• Svelte Vite plugin (Svelte 5.1.7 and 5.2.0, Svelte Vite plugin 4.0.1):
  • Svelte 5 + Vite 5: working with this PR
  • Svelte 5 + Vite 6: working (we need to add resolve.conditions: ['browser']) Vite or Svelte plugin resolving Svelte from index-server.js instead index-client.js
• React Vite plugin: tested with Vite 5 and 6 (via pnpm create vite > React TS + adding pwa stuff from pnpm create @vite-pwa/pwa > React TS)
• Vue Vite plugin (5.2.0): tested with Vite 5 and 6 (via pnpm create vite > Vue TS + adding pwa stuff from pnpm create @vite-pwa/pwa > Vue TS)

Linked Issues

Additional Context

fix #798

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[userquin]

/publish

[pkg-pr-new]

npm i https://pkg.pr.new/vite-plugin-pwa@786

commit: 88b2e45