Changed PlayerAddedToTabEvent from record to normal class (#117)

src/main/java/net/william278/velocitab/api/PlayerAddedToTabEvent.java

@@ -20,9 +20,53 @@
 package net.william278.velocitab.api;
 
 import net.william278.velocitab.player.TabPlayer;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
 
-public record PlayerAddedToTabEvent(TabPlayer player, String group, List<String> groupServers) {
+@SuppressWarnings("unused")
+public class PlayerAddedToTabEvent {
 
+    private final TabPlayer player;
+    private final String group;
+    private final List<String> groupServers;
+
+    public PlayerAddedToTabEvent(@NotNull TabPlayer player, @NotNull String group, @NotNull List<String> groupServers) {
+        this.player = player;
+        this.group = group;
+        this.groupServers = groupServers;
+    }
+
+    @NotNull
+    public TabPlayer getTabPlayer() {
+        return this.player;
+    }
+
+    @NotNull
+    public String getGroup() {
+        return this.group;
+    }
+
+    @NotNull
+    public List<String> getGroupServers() {
+        return this.groupServers;
+    }
+
+    @NotNull
+    @Deprecated(forRemoval = true)
+    private TabPlayer player() {
+        return this.player;
+    }
+
+    @NotNull
+    @Deprecated(forRemoval = true)
+    private String group() {
+        return this.group;
+    }
+
+    @NotNull
+    @Deprecated(forRemoval = true)
+    private List<String> groupServers() {
+        return this.groupServers;
+    }
 }