Feature request: Option to start application minimized to system tray

### Is your feature request related to a problem? Please describe.
IPFS Desktop acts primarily as a background node/daemon for the decentralized web. However, having the main window pop up and steal focus every time the system starts (or the user logs in) interrupts the user workflow and feels intrusive for a background service.

### Describe the solution you'd like
**The Request:** Add an option to launch IPFS Desktop minimized to the system tray/menubar.

**Suggested behavior:**
Add a toggle in *Preferences*: **"Start application minimized to tray"**.
* **When enabled:** The app starts silently in the background (tray icon appears) without opening the main window.
* **When disabled (default):** The current behavior is maintained.

**Why this is important:**
* **Better UX:** Allows IPFS to run seamlessly in the background without manual intervention.
* **Workflow:** Users don't have to manually close the window at every startup.
* **Expectation:** Standard behavior for background services/daemons (like Dropbox, Steam, or VPN clients).

### Alternatives considered
* Manually closing the window at every startup.