Add custom range + fixes

[Athar42]

• (Once again) adding disc range functionnality (with the latest changes of CommandAPI)
• Changed "shadow" plugin to the latest official release from : https://github.com/GradleUp/shadow
• Renamed the Shadowed jar from "-shadow-dev.jar" to just "-dev.jar"
• Update CommandAPI version to release 9.5.3
• Increase plugin version from 3.0 to 3.1
• Upgrade gradle version from 8.5 to 8.7

- If no custom sound range is set, will revert to the default "musicDiscDistance" set in the plugin config.

• Removed all "ChatColor" (bukkit) commands which are depreacated and replaced by AdventureAPI "NamedTextColor".

PR for https://github.com/Navoei/CustomDiscs/pull/49 (and later to keep working on goat horns : https://github.com/Navoei/CustomDiscs/issues/50 )