* feat(clipboard-manager): add support for writing secrets
add `write_secret` command that writes a text into the clipboard and
hints clipboard managers to not save the text.
uses `arboard`'s `SetExtLinux`, `SetExtWindows`, and `SetExtApple`
extensions for each platform.
* fix(clipboard-manager): require arboard 3.6
* chore(clipboard-manager): add license header to secret.rs
* fix(clipboard-manager): only exclude from monitoring on Windows
* refactor(clipboard-manager): replace ExcludeSecret trait with a function
* chore(clipboard-manager): drop redundant cfg(desktop) in desktop.rs
* refactor(clipboard-manager): share clipboard access in a helper
* feat(clipboard-manager): implement write_secret on Android and iOS
* docs(clipboard-manager): document writeSecret
* chore(clipboard-manager): add change file for writeSecret
* test(clipboard-manager): cover writeSecret in e2e
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Co-authored-by: Lucas Nogueira <lucas@tauri.app>