Increase coverage and bump deps

[smnandre]

Test coverage now > 90%

I'm thinking this could be a serious candidate to a 1.0 stable release ?

Did bump PHP to 8.3 in order to have modern PHPUnit support

What do you think @kbond @nikophil ?

---

Dependency and Compatibility Updates:

• Increased the minimum required PHP version to 8.3
• Updated the CI workflow in .github/workflows/ci.yml

Documentation Improvements:

• Rewrote README.md

Testing and Quality Enhancements:

• Refactored phpunit.xml.dist to separate functional and unit tests
• Increased test coverage > 97%
• Marked debugging methods (dump, dd) with @codeCoverageIgnore

Other Code Changes:

• Made the Node constructor protected
• Improved the isVisible() method in Node to check for hidden attributes, type="hidden", and inline display:none/visibility:hidden styles, providing a more robust visibility check
• Ensured strict comparison (===) is used in assertion methods for field and selected value equality, increasing accuracy and preventing subtle bugs

[kbond]

Wow @smnandre, this is really great. Yep, you're right, let's pull the plug on a 1.0.

If you resolve the conflict and push, I've re-enabled the CI

[kbond]

mb_trim is in the 84 polyfill.

In my other packages, I just didn't use it to avoid the dep (you just have to be sure to run cs fixer with 8.3 locally)

[kbond]

Thanks Simon!