fix for opening inventories with data

[Mustachedom]

Description

Currently: You can create a stash named anything you want. set it to 5 slots and 2000 max pounds. If you were to adjust this to 10 slots and 1000 pounds it will retain its original set data and not take the new data being sent

This: It moves the data check to the beginning so if its nil then it goes to previous data check. this will allow people to not have to recreate stashes to adjust settings of it. and if its the first time opening that stash with no data being sent then it goes to config values

Checklist

• [ x] I have personally loaded this code into an updated qbcore project and checked all of its functionality.
• [x ] My code fits the style guidelines.
• [ x] My PR fits the contribution guidelines.

[Mycroft-Studios]

already fixed in #546

[Mustachedom]

@Mycroft-Studios you're a G!

Got tired of people telling me my stash script was broken because qb wasn't updating their customizations haha. I'll tell them to update to your branch :)