capture: the suggested shortcut is a UI affordance, so it lives in the UI

`-D warnings` failed the Linux lane on `constant SUGGESTED is never used`, and
it was right — the suggestion is implemented in `bridge.ts` as
SUGGESTED_CAPTURE_SHORTCUT, and nothing in Rust ever read the copy here.

Deleted rather than exposed through a command. This side accepts any
combination the OS will take; picking one to put in front of someone as a
starting point is a UI decision, and a constant here would only be a second
copy of a string one layer reads and the other does not.

Worth noting what this run DID prove, since the previous one proved nothing:
the lockfile gate passed and the Windows job built the NSIS installer end to
end. So `tauri-plugin-global-shortcut`'s handler signature — the thing I could
not verify without a toolchain — is correct, and the feature compiles.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01K3MMqUtzX1TJgA1oypvm1c

desktop/src-tauri/src/capture.rs

@@ -11,8 +11,12 @@
 //! it knows nothing about. Whatever default is picked is a key combination taken
 //! away from something on somebody's machine, silently, at install time. So there
 //! is no default: the feature is off until someone chooses a combination, and
-//! choosing one is how it turns on. [`SUGGESTED`] is offered by the UI as a
-//! starting point, not applied on its behalf.
+//! choosing one is how it turns on.
+//!
+//! The suggestion the settings screen offers (`CommandOrControl+Shift+N`) lives in
+//! the frontend, not here. It is a UI affordance — a starting point put in front of
+//! someone — and this side accepts any combination the OS will take, so a constant
+//! here would be a second copy of a string only the UI ever reads.
 //!
 //! ## Failure has to be visible
 //!
@@ -34,13 +38,6 @@ const SHORTCUT_PREF: &str = "capture_shortcut";
 /// The window the hotkey opens. Also the label the capability file grants to.
 pub const CAPTURE_WINDOW: &str = "capture";
 
-/// What the UI offers as a starting point. NOT applied automatically — see above.
-///
-/// `CommandOrControl+Shift+N`: the Command/Control split is Tauri's own portable
-/// spelling, and Shift+N is rare enough to be free on most desktops while still
-/// meaning "new" to the person pressing it.
-pub const SUGGESTED: &str = "CommandOrControl+Shift+N";
-
 /// Emitted to the main window after a capture is saved, so the board reloads.
 ///
 /// The two windows hold separate copies of the frontend and therefore separate