[Feature Request] New option in Settings to "open minimized to tray"

[lcdessantos]

Please add this new feature: new option in Settings to "Open Gradio minimized" so when Gradio is set to open at system startup, it's window is minimized to tray instead of shown.

[Mikaela]

I would like this to be a command line flag too, so I could set it in my i3 config regardless of what Gradio settings say.

I listen to online radios a lot, but I would prefer to not see Gradio pop up on login and distract me from automatically starting terminal, but still have it open quickly by just clicking the tray icon.