Replaces bin/restart by bin/cli kill and removes sleep command

[HoePe999]

As mentioned in #1189

[what-the-diff]

PR Summary

• Update on methods to restart PHP-FPM service
  The methods xdebug_enable and xdebug_disable have been updated to use bin/cli kill -USR2 1 instead of bin/restart phpfpm for restarting the PHP-FPM service. This update should provide a more efficient method for restarting the service.

• Removal of redundant commands
  Unnecessary sleep 1 commands, which were previously included in both xdebug_enable and xdebug_disable functions, have been removed to streamline the code. This removal leads to cleaner code with less delayed processes.

[markshust]

Thanks for this -- I'll just need to test this out, but if works fine I'll go ahead and merge it in 👍