Borderless and transparency mode

[animationstudio1226-droid]

So im been enjoying using ardia a lot so far but theres a few features i would suggest to add. So one thing i like in arc is that when i hide the sidebar it the side borders disappear, in ardia there isnt this feature. Maybe add this feature or an option to toggle borderless mode. another idea is that maybe in the future is to add transparency to the sidebar, cause based on what I obseverved ardias ui design language is to look glass-like and the flat sidebar background just ruins the emersion.