feat(tray): add option for tray icon and defaults to disable

[ldm0]

No description provided.

[Copilot]

Pull request overview

This pull request adds a user-configurable tray icon preference that defaults to disabled, allowing users to control whether the application displays a system tray/menu bar icon.

Key changes:

• Introduces preference storage for tray icon state using localStorage
• Implements dynamic tray icon enabling/disabling functionality
• Adds a toggle switch in the preferences UI for user control

Reviewed changes

Copilot reviewed 21 out of 21 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
cardinal/src/trayIconPreference.ts	New module for managing tray icon preference storage in localStorage
cardinal/src/tray.ts	Adds setTrayEnabled function to dynamically enable/disable the tray icon
cardinal/src/main.tsx	Removes automatic tray initialization, making it opt-in via preferences
cardinal/src/App.tsx	Integrates tray icon state management with preference persistence
cardinal/src/components/PreferencesOverlay.tsx	Adds toggle switch UI for controlling tray icon visibility
cardinal/src/App.css	Adds styling for the new preference toggle switch component
cardinal/src/i18n/resources/*.json	Adds translations for "Show tray icon" label across all supported languages

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