[bug] global-shortcut should allow re-registering a shortcut, and calling unregister_all when no shortcuts are registered should return success directly.

[Tallone]

Describe the bug

Now when registering a shortcut which already exists, it will return an error: "Hotkey already registered."

When there are no registered shortcuts, calling unregister_all will return an error: "Invalid arguments shortcuts for command unregister_all: command unregister_all missing required key shortcuts."

Reproduction

No response

Expected behavior

When registering a shortcut that already exists, maybe it should directly override it, so that repeated calls do not fail.

When calling unregister_all if there are no registered shortcuts, it should return ok directly, instead of returning an error.

Full tauri info output

[✔] Environment
    - OS: Windows 10.0.22631 X64
    ✔ WebView2: 124.0.2478.97
    ✔ MSVC: Visual Studio Community 2022
    ✔ rustc: 1.77.0 (aedd173a2 2024-03-17)
    ✔ cargo: 1.77.0 (3fe68eabf 2024-02-29)
    ✔ rustup: 1.27.0 (bbb9276d2 2024-03-08)
    ✔ Rust toolchain: stable-x86_64-pc-windows-msvc (default)
    - node: 20.13.1
    - pnpm: 9.1.0
    - yarn: 1.22.19
    - npm: 10.5.2
    - bun: 1.1.8

[-] Packages
    - tauri [RUST]: 2.0.0-beta.19
    - tauri-build [RUST]: 2.0.0-beta.15
    - wry [RUST]: 0.39.5
    - tao [RUST]: 0.28.0
    - @tauri-apps/api [NPM]: 2.0.0-beta.11
    - @tauri-apps/cli [NPM]: 2.0.0-beta.17

[-] App
    - build-type: bundle
    - CSP: unset
    - frontendDist: ../dist
    - devUrl: http://localhost:1420/
    - framework: Vue.js
    - bundler: Vite

Stack trace

No response

Additional context

No response

[amrbashir]

unregister_all will only unregister registered by your own application and not by the system, the "Hotkey already registered." error means another app has already registered the same shortcut you're trying to register and your app can't hijack that, it is an OS limiation.