SIGUSR1 to trigger fcitx layout change

wlx-overlay-s/Cargo.toml

@@ -26,7 +26,6 @@ chrono = "0.4.42"
 chrono-tz = "0.10.4"
 clap = { version = "4.5.53", features = ["derive"] }
 config = "0.15.19"
-ctrlc = { version = "3.5.1", features = ["termination"] }
 dbus = { version = "0.9.9" }
 futures = "0.3.31"
 glam = { workspace = true, features = ["mint", "serde"] }
@@ -99,6 +98,7 @@ wayland-egl = { version = "0.32.8", optional = true }
 bytes = { version = "1.11.0", optional = true }
 wayvr_ipc = { git = "https://github.com/olekolek1000/wayvr-ipc.git", rev = "a72587d23f3bb8624d9aeb1f13c0a21e65350f51", default-features = false, optional = true }
 rust-embed = { workspace = true }
+signal-hook = "0.3.18"
 ################################
 
 [build-dependencies]