Issue-867: Update class constructor docblocks to support specifying an array or a string for $label

[nikkifurls]

Summary

This pull request updates class constructor docblocks to accurately reflect that $label can be either an array or a string. This change aims to address issues with code quality tools like phpstan that arise due to the current incorrect specification of $label as a string only. Fixes #867

Background

Each constructor within the project has a $label parameter, which, according to the current docblocks, accepts only a string. This has been identified as incorrect since $label can also be an array. The mismatch between the implementation and the documentation causes tools like phpstan to report errors, potentially affecting code quality assurance processes.

Changes

• Updated the docblocks across various constructors to specify that $label can be either a string or an array.
• Ensured that all related documentation is updated to reflect this change, preventing any confusion or discrepancies in the future.

Testing

1. Set up phpstan on a project that utilizes wordpress-fieldmanager.
2. Register a new Fieldmanager field, providing an array for $label, to simulate the scenario that previously led to errors.
3. Run phpstan to ensure that it no longer reports errors regarding the type of $label.

Additional Notes

This change is categorized as an enhancement rather than a bug fix, as it primarily aims to improve compatibility with code quality tools without altering the functionality of the existing codebase.

References

• Issue link: Update class constructor docblocks to support specifying an array or a string for $label #867

[mogmarsh]

looks good! 👍