Added Authentic Nepali food items (Momo)

[nepal4972]

Description

This PR adds a new item, Momo, an authentic Nepali food item, to the items.lua file in QBCore. The item has been configured with a unique name, label, weight, image, and useable properties.

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.

[RojinxChhetri]

Thank you for the effort in submitting this PR. However, I believe this change is unnecessary. If you need the momo item specifically for your server, it can be added locally without merging it into the shared codebase, as it may not be relevant or useful for others.

If you want to contribute items, I would suggest creating something more universally useful, along with its functionality, that would benefit everyone rather than being specific to a particular region.

Based on my review, I recommend closing this PR.