Closes #ISSUE

This allows new windows like the Rules library or the Settings UI window
to appear floating on window managers like hyprland:


https://github.com/user-attachments/assets/628db7f9-4459-4601-85f1-789923831182

Left is with `WindowKind::Floating` and right is with
`WindowKind::Normal`

Release Notes:

- Added support for floating windows on x11 and wayland