:bug: Fixes GetTrunkSize export

[snalye]

Description

Fixes the GetTrunkSize export. Previously would try to gather a table from the trunk weight and slots, but that's not how it's configured in the config.

[0] = { -- Compacts
        slots = 30,
        maxWeight = 38000
    },

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.