Moves the logic for saving and loading configuration files from the main UI script into the `FFUUI.Core.Config` module. This change improves modularity and separation of concerns, making the code easier to maintain.
The main `BuildFFUVM_UI.ps1` script is simplified, with event handlers now calling the new, dedicated functions in the core module to manage configuration state.
Also corrects the path for the `FFUConfig.json` file.
Moves UI configuration loading and retrieval logic into a new `FFUUI.Core.Config` module.
Removes the `Set-UIValue` helper function from `BuildFFUVM_UI.ps1` and the `Get-UIConfig` function from `FFUUI.Core.psm1`.
This centralizes UI-related configuration handling for improved modularity.