Update Message.java

Add message

src/main/java/com/lenis0012/bukkit/marriage2/config/Message.java

@@ -55,6 +55,7 @@ public enum Message {
     CONFIG_RELOAD("&aConfiguration settings were reloaded, please note that some settings may not apply until reboot."),
     GENDER_ALREADY_CHANGED("&cYou have already specified your gender, you can only do this once."),
     TELEPORT_UNSAFE("&cThe location you are trying to teleport to is unsafe or obstructed"),
+    PARTNER_INVENTORY_FULL("&cYour partner's inventory is full!"),
 
     // COMMANDS
     COMMAND_MARRY("Request a marriage with another player"),