Reward Item is added to config.lua for betterment

[warlikeprince]

Describe Pull request Reward Item is added to config.lua for better use.

If your PR is to fix an issue mention that issue here

Questions (please complete the following information):

• Have you personally loaded this code into an updated qbcore project and checked all it's functionality? [yes]
• Does your code fit the style guidelines? [yes]
• Does your PR fit the contribution guidelines? [yes]