Add shortcut display to the menu - #42

Sources/ZoomItMacCore/App/AppController.swift:104

• DemoType uses 0 as a disabled sentinel (SettingsWindowController.demoTypeHotKeyDisplayString() returns “None” when the code is 0). This dialog should match that behavior for both the Start and Reset variants.

        let demo = describe(code: settings.demoTypeHotKeyCode, modifiers: settings.demoTypeHotKeyModifiers)
        let demoReset = describe(
            code: settings.demoTypeHotKeyCode,
            modifiers: settings.demoTypeHotKeyModifiers ^ NSEvent.ModifierFlags.shift.rawValue
        )

Sources/ZoomItMacCore/App/AppController.swift:84

• describe(code:modifiers:) treats keyCode 0 as “None”, but elsewhere in the codebase keyCode 0 is a valid key (“A”) for most hotkeys (see SettingsWindowController.keyNames[0]). Only some hotkeys (e.g. Snip OCR / DemoType) use 0 as a disabled sentinel. As written, this dialog will incorrectly display “None” if the user binds any non-optional hotkey to the A key.

        func describe(code: Int, modifiers: UInt) -> String {
            guard code != 0 else { return "None" }
            return SettingsWindowController.describe(
                keyCode: code,
                modifiers: NSEvent.ModifierFlags(rawValue: modifiers)

Sources/ZoomItMacCore/App/AppController.swift:94

• Snip OCR uses 0 as a disabled sentinel (SettingsWindowController.snipOcrHotKeyDisplayString() returns “None” when the code is 0). After fixing describe(...) to treat 0 as a real key code, this line should preserve the “None” behavior for the disabled Snip OCR shortcut.

This issue also appears on line 100 of the same file.

        let snipOcr = describe(code: settings.snipOcrHotKeyCode, modifiers: settings.snipOcrHotKeyModifiers)