Improve the Navigation behavior of the application

[himanshunaidu]

Currently, the application has two NavigationStack setups (WorkspaceSelection and Setup), and uses exclusively view-based destinations.
This can be improved by replacing view-based destinations with value-based destinations, and having a single NavigationStack for the entire application.

[himanshunaidu]

Main Reference: https://developer.apple.com/documentation/swiftui/understanding-the-composition-of-navigation-stack

[himanshunaidu]

Other References:
https://medium.com/@dinaga119/mastering-navigation-in-swiftui-the-2025-guide-to-clean-scalable-routing-bbcb6dbce929
https://michaellong.medium.com/advanced-navigation-destinations-in-swiftui-05c3e659f64f