Fixed version information when installed from npm

[compulim]

Fixes #5520.

Changelog Entry

Fixed

• Fixed #5520. Version information should be injected when installed via npm, in PR #5521, by @compulim

Description

When importing Web Chat installed via npm install, version information are not injected.

Specific Changes

• Move all entry point related files to /boot/
• Both /boot/bundle/ and /boot/exports/ now points to /boot/actual/
• /boot/bundle/ and /boot/exports/ will inject version information properly
• The module-format marker should be properly listing either esmodules, commonjs, or global

• I have added tests and executed them locally
• I have updated CHANGELOG.md
• I have updated documentation

Review Checklist

This section is for contributors to review your work.

• Accessibility reviewed (tab order, content readability, alt text, color contrast)
• Browser and platform compatibilities reviewed
• CSS styles reviewed (minimal rules, no z-index)
• Documents reviewed (docs, samples, live demo)
• Internationalization reviewed (strings, unit formatting)
• package.json and package-lock.json reviewed
• Security reviewed (no data URIs, check for nonce leak)
• Tests reviewed (coverage, legitimacy)