Taskbar/Panel is not displaying the window title.

• I am on the latest Hyper.app version
• I have searched the issues of this repo and believe that this is not a duplicate

• OS version and name: Ubuntu 18.04.1 LTS x86_64
• Hyper.app version: Hyper 2.0.0 (stable)
• Link of a Gist with the contents of your .hyper.js: https://gist.github.com/Ma124/a521b238d639cc59e857aa9f09ab6db6
• Relevant information from devtools (CMD+ALT+I on macOS, CTRL+SHIFT+I elsewhere): N/A
• The issue is reproducible in vanilla Hyper.app: yes

Issue

As you can see at 1 the hyper recognises that I'm using man and displays it in the titlebar.
BUT as shown at 2 (and (2)) it isn't displayed properly in the taskbar/bottom panel.

I think 'fixing' this would be really helpful for people who prefer working with multiple windows instead of tabs because if you've got 3 terminals open (e.g. Vi, Man and one for git) you get really confused. (Especially if you taskbar doesn't add the <2> like mine (KDE))

Thank you very much in advance!

Start by reproducing the issue on Ubuntu 18.04.1 LTS with Hyper 2.0.0, comparing the titlebar with the taskbar or bottom panel for multiple windows. Use the linked .hyper.js configuration and inspect relevant information through the listed devtools entry point. Done means each window's taskbar title identifies its current terminal content.