Opal v1.3.0

What's Changed

• Gradle upgrade by @CodeDead in #106
• feat: Javafx upgrade, dependency upgrade, Gradle upgrade by @CodeDead in #109
• feat: added metronome sounds by @CodeDead in #110
• feat: jdk upgrade, replaced deprecated gradle methods, replaced depre… by @CodeDead in #112
• feat: added a play / pause shortcut by @CodeDead in #113
• feat: dependency upgrades, performance improvement by @CodeDead in #114
• Release/v1.3.0 by @CodeDead in #115

Full Changelog: v1.2.0...v1.3.0