refactor: fixing codestyle and improving codequality

src/main/java/uulm/teamname/marvelous/gamelibrary/config/CharacterProperties.java

@@ -5,10 +5,8 @@ import com.fasterxml.jackson.annotation.JsonPropertyOrder;
 
 import java.util.Objects;
 
+/** Represents properties of a character in the {@link CharacterConfig} */
 @JsonPropertyOrder({"characterID", "name", "HP", "MP", "AP", "meleeDamage", "rangeCombatDamage", "rangeCombatReach"})
-/**
- * Represents properties of a character in the {@link CharacterConfig}.
- */
 public class CharacterProperties {
     public int characterID;
     public String name;

src/main/java/uulm/teamname/marvelous/gamelibrary/config/ScenarioConfig.java

@@ -27,7 +27,7 @@ public class ScenarioConfig {
     @Override
     public int hashCode() {
         int result = Objects.hash(author, name);
-        result = 31 * result + Arrays.hashCode(scenario);
+        result = 31 * result + Arrays.deepHashCode(scenario);
         return result;
     }