Add an option to hide the tray icon

[timabbott]

I've gotten feedback from a few users that they would appreciate the ability to disable the Mac OS menu bar item for Zulip to keep it uncluttered.

[geeeeeeeeek]

I've sent a PR to toggle the tray icon.

However, in the future, I think we should have a centralized Preference pane to collect all these settings. So that users won't bother to repeat these actions as they restart the app.

[timabbott]

Yeah, agreed, a centralized preference pane is a good model.

@geeeeeeeeek have you checked out the old/legacy desktop app that was written in QT/webkit available from https://chat.zulip.org/apps/? It had a few menu items, which may be useful context for you in thinking about this.

[geeeeeeeeek]

Didn't know there were a legacy app. I will look into that. But we are going to do the Preferences pane, there better be a ux design.

[geeeeeeeeek]

@timabbott Electron does not provide a way to integrate a native Preference pane. We need to write a local web app (or web page) to do that. Maybe in another PR. I would suggest adding the option to the menu for now.

[akashnimare]

I would suggest adding the option to the menu for now.

Make sense. Merged #122

[akashnimare]

Moving this discussion to https://github.com/zulip/zulip-electron/issues/123