Feat/nonces ssr

[tsotimus]

Key Changes

• Removed csp-toolkit from monorepo, moved to this repo
• Renaming this repo to vite-plugin-csp-guard, hence renaming lots of readme's etc
• Documentation update
• Update main package.json
• Update GH action workflows

Approach

The vite plugin and the toolkit serve different purposes, even though the vite-csp-guard depends on the toolkit it doesn't mean it should be housed and tested together. Documentation should be separate, repo should be separate etc

Checklist

• Tests
• Documentation