Present desktop authentication and automatic relocking

Cargo.lock

@@ -3653,6 +3653,7 @@ dependencies = [
  "iced_core",
  "log",
  "rustc-hash 2.1.3",
+ "tokio",
  "wasm-bindgen-futures",
  "wasmtimer",
 ]
@@ -3989,6 +3990,7 @@ dependencies = [
  "hex",
  "hmac",
  "keyring-core",
+ "nix 0.31.3",
  "pgp",
  "qrcode",
  "rand 0.8.7",
@@ -3996,7 +3998,6 @@ dependencies = [
  "regex",
  "reqwest",
  "rqrr",
- "rustix 1.1.4",
  "secret-service",
  "security-framework",
  "serde",