Rodex retrieve-all inventory-slot check

[MrKeiKun]

Describe the bug Rodex's retrieve all doesn't check the available number of slots of the character forces some items to be retrieved from the mail and the leftovers are permanently stucked in the mail itself.

To Reproduce

1. Force inventory to have 99/100 inventory slots
2. Retrieve All a particular rodex mail that has 2 or more distinct items attached to it

Expected behavior Restrict user to Retrieve all when the available inventory slots cannot handle all the items attached to the mail.

System specs (please complete the following information):

• OS: CentOS 8 x64
• Hercules Version: master
• Mode: Renewal