Clipboard (Ctrl+C/V) does not work on Wayland unless wayland-data-control feature is enabled

Version: 0.3.0-beta.2
Platform: Linux (Vulkan/Wayland)
On Wayland, arboard cannot use Ctrl+C and Ctrl+V to interact with the clipboard unless the `wayland-data-control` feature is enabled.

I think that adding the `wayland-data-control` feature by default in Cargo.toml can solve this problem.
Alternatively, we could conditionally enable this feature only when targeting Wayland

**Steps to reproduce:**
1. Run Blitz on a pure Wayland session (no XWayland).
2. Try to copy (Ctrl+C) text from an external app and paste (Ctrl+V) into Blitz.
3. Or try to copy from Blitz and paste elsewhere.

Start with Cargo.toml and inspect how Blitz depends on arboard and its Wayland features. Reproduce the issue in a pure Wayland session using the listed copy and paste steps, then verify that clipboard interaction works without manually enabling the feature.

Written by the indexing model from the issue text.