Create a default impl for I18nAdapter in paper

src/main/java/com/nookure/core/inv/paper/DefaultPaperAdapter.java

@@ -0,0 +1,21 @@
+package com.nookure.core.inv.paper;
+
+import com.nookure.core.inv.I18nAdapter;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.Nullable;
+
+public class DefaultPaperAdapter extends I18nAdapter<Player> {
+
+  @Override
+  public String translate(String key, boolean isKey, @Nullable Player player) {
+    return LegacyComponentSerializer.legacySection().serialize(translateComponent(key, isKey, player));
+  }
+
+  @Override
+  public Component translateComponent(String key, boolean isKey, @Nullable Player player) {
+    return MiniMessage.miniMessage().deserialize(key);
+  }
+}