fix: switch to 2.0 invui and translation

src/main/java/me/unurled/sacredrealms/sr/Manager.java

@@ -0,0 +1,52 @@
+package me.unurled.sacredrealms.sr;
+
+import org.bukkit.Bukkit;
+import org.bukkit.event.Listener;
+import org.jetbrains.annotations.NotNull;
+
+/** The Manager class is a class that is used to manage data and events. */
+public class Manager implements Listener {
+
+  /** Create a new manager */
+  public Manager() {
+    SR.plugin().managers().addManager(this);
+    Bukkit.getScheduler()
+        .runTaskAsynchronously(
+            SR.plugin(),
+            () -> {
+              load();
+              Bukkit.getPluginManager().registerEvents(this, SR.plugin());
+            });
+  }
+
+  /**
+   * Get an instance of a manager
+   *
+   * @param clazz The class of the manager
+   * @return The instance of the manager
+   * @param <T> The type of the manager
+   */
+  public static <T extends Manager> T getInstance(@NotNull Class<T> clazz) {
+    return clazz.cast(SR.plugin().managers().getManager(clazz));
+  }
+
+  /** Load the manager */
+  public void load() {
+    loadData();
+  }
+
+  /** Unload the manager */
+  public void unload() {
+    saveData();
+  }
+
+  /** Save the data */
+  public void saveData() {
+    /* method empty, so it isn't required by the extended child to implement it */
+  }
+
+  /** Load the data */
+  public void loadData() {
+    /* method empty, so it isn't required by the extended child to implement it */
+  }
+}