chore(entity): improve relationship mapping

Author: theEvilReaper

src/main/java/net/onelitefeather/vulpes/api/model/FontEntity.java

@@ -38,7 +38,7 @@ public class FontEntity implements VulpesModel {
     private String comment;
     private int height;
     private int ascent;
-    @OneToMany(cascade = CascadeType.ALL)
+    @OneToMany(mappedBy = "font", cascade = CascadeType.ALL)
     private List<FontLoreEntity> chars;
 
     /**

src/main/java/net/onelitefeather/vulpes/api/model/ItemEntity.java

@@ -41,11 +41,11 @@ public class ItemEntity implements VulpesModel {
     private String groupName;
     private int customModelData;
     private int amount;
-    @OneToMany(cascade = CascadeType.ALL)
+    @OneToMany(mappedBy = "item", cascade = CascadeType.ALL)
     private List<ItemEnchantmentEntity> enchantments;
-    @OneToMany(cascade = CascadeType.ALL)
+    @OneToMany(mappedBy = "item", cascade = CascadeType.ALL)
     private List<ItemLoreEntity> lore;
-    @OneToMany(cascade = CascadeType.ALL)
+    @OneToMany(mappedBy = "item", cascade = CascadeType.ALL)
     private List<ItemFlagEntity> flags;
 
     /**