feat: update data folder path

[vansangpfiev]

We was assuming data folder will be in the same folder as cortex binary file

cortex
|__ engines
|__ models
|__ cortex.exe

but we finalized the data folder structure in #1115
This requires us to update logic to make it works properly.

fixes #1154

[gabrielle-ong]

Closing this - adding as a sub feat of the bigger epic