Refactor createAppeal in AppealMapper to void return type, adjust AppealController to remove redundant UUID handling. Optimize AppealDataMapper to use UUID.randomUUID().

backend/src/main/java/com/alttd/altitudeweb/mappers/AppealDataMapper.java

@@ -4,6 +4,8 @@ import com.alttd.altitudeweb.database.web_db.forms.Appeal;
 import com.alttd.altitudeweb.model.MinecraftAppealDto;
 import org.springframework.stereotype.Service;
 
+import java.util.UUID;
+
 @Service
 public class AppealDataMapper {
     public MinecraftAppealDto appealToMinecraftAppealDto(Appeal appeal) {
@@ -17,7 +19,7 @@ public class AppealDataMapper {
 
     public Appeal minecraftAppealDtoToAppeal(MinecraftAppealDto minecraftAppealDto) {
         return new Appeal(
-                null,
+                UUID.randomUUID(),
                 minecraftAppealDto.getUuid(),
                 minecraftAppealDto.getUsername(),
                 minecraftAppealDto.getAppeal(),