feat: add modern shell top bar

tools/ferese-shell-spike/Cargo.toml

@@ -7,5 +7,5 @@ rust-version = "1.93"
 
 [dependencies]
 ferese-protocols = { path = "../../crates/ferese-protocols", default-features = false, features = ["client"] }
-libcosmic = { git = "https://github.com/pop-os/libcosmic", rev = "03d7dcb832bc6d15bc1bb07327a1aa426b2d5bc0", default-features = false, features = ["multi-window", "tokio", "wayland"] }
+libcosmic.workspace = true
 wayland-client.workspace = true