fix: improve multi-checkbox to disabled when selected option with a true disableOthers

[Xexuline]

Description

Send option on disableOthers to allow forcing the disabling of elements only when disableOthers is explicitly enabled.

Motivation and Context

This problem was detected on client project, where implementing the disableOthers functionality

How Has This Been Tested?

Tested locally importing the updated library into package.json

Screenshots (if appropriate):

Before fix
https://github.com/user-attachments/assets/50f81edb-0c6f-4dba-86e6-68418d81cef5

After fix
https://github.com/user-attachments/assets/ad720907-60c3-43a3-920c-04fbb9e994b9

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[matyasjay]

Thanks!