Decrease bundle size + update readme

[MattCCC]

Features:

• Add custom fetcher typings
• Detect Response from custom fetchers and append additional info to responses if possible

Improvements:

• Decrease bundle size by up to 5%
• Improve ResponseError typings

Fixes:

• Properly bind response instance to fetch responses
• Improve config checks and prioritization of per-request settings
• onError interceptor should work also for cancelled requests
• Config for the custom fetcher should be treated the same way as for native fetch()

Docs:

• Update readme with latest values in the Plugin Comparison Table
• Update readme Settings table

[github-actions]

size-limit report 📦

Path	Size
dist/browser/index.mjs	2.84 KB (-1.5% 🔽)
dist/browser/index.global.js	2.99 KB (-1.2% 🔽)

[red-game-dev]

LGTM 🚀