Refactor to PaperPlugin

src/main/java/com/alttd/playershops/PlayerShopsBootstrap.java

@@ -0,0 +1,12 @@
+package com.alttd.playershops;
+
+import io.papermc.paper.plugin.bootstrap.BootstrapContext;
+import io.papermc.paper.plugin.bootstrap.PluginBootstrap;
+
+@SuppressWarnings("UnstableApiUsage")
+public class PlayerShopsBootstrap implements PluginBootstrap {
+
+        @Override
+        public void bootstrap(BootstrapContext context) {}
+
+}