Update tray script to support shown/hidden state on start-up.
Update tray script to support shown/hidden state on start-up.

zulip/zulip-desktop,zulip/zulip-desktop,zulip/zulip-electron,zulip/zulip-electron,zulip/zulip-desktop,zulip/zulip-electron,zulip/zulip-desktop