Fix StashFinder altitude bug and update pathing logic to use true Y coordinate

[subhammohanty-sys]

Type of change

• Bug fix
• New feature

Description

Fixed a bug in StashFinder where the tracer and pathfinding logic ignored the actual Y coordinate of the stash.

Summary of Changes:

• Previously, the mod relied purely on 2D chunk coordinates, causing the tracer to point horizontally into the sky
• Updated onChunkData to capture the true Y coordinate of the detected storage block.
• Updated the GUI menu, goto button, and chat notification to utilize the accurate 3D coordinates.

Related issues

Fixes #6382

How Has This Been Tested?

Before :

After :

Checklist:

• My code follows the style guidelines of this project.
• I have added comments to my code in more complex areas.
• I have tested the code in both development and production environments.