➕ Add donate button to carousel screen

src/main/resources/assets/controlify/lang/en_us.json

@@ -4,6 +4,7 @@
   "controlify.gui.carousel.entry.settings": "Settings",
   "controlify.gui.carousel.entry.use": "Use",
   "controlify.gui.carousel.entry.in_use": "Currently in use",
+  "controlify.gui.carousel.donate": "Donate!",
   "controlify.gui.carousel.art_credit": "Controller art by %s.",
 
   "controlify.gui.global_settings.title": "Global Settings",