Add composer.libraries.json in the 8.x-1.x library and fix the same file in the 2.0.x branch

I fixed the composer.libraries.json file and It downloads the correct library version:

daniel@drupal:/var/www/html$ composer require "rubentd/radios-to-slider"
./composer.json has been updated
Running composer update rubentd/radios-to-slider
Loading composer repositories with package information
Updating dependencies
Lock file operations: 1 install, 0 updates, 0 removals
  - Locking rubentd/radios-to-slider (0.2.2)
Writing lock file
Installing dependencies from lock file (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
  - Downloading rubentd/radios-to-slider (0.2.2)
  - Installing rubentd/radios-to-slider (0.2.2): Extracting archive
Generating autoload files
98 packages you are using are looking for funding.
Use the `composer fund` command to find out more!
phpstan/extension-installer: Extensions installed
No security vulnerability advisories found.
Using version ^0.2.2 for rubentd/radios-to-slider

I'll merge this branch and I'll use the same file in the 8.x-1.x branch

Added the file composer.libraries.json in the 8.x-1.x branch and tested it ok, merging.

I'll leave this task to "Needs Review" just in case anyone wants to do extra testing (for credits!)

I'll move it to "Fixed" for now, as always, any issues and please let me know and I'll re-open the task.