Age is not updating

[Slevy35]

Describe the bug
Age is stuck on 1s ago

Setup (please complete the following information):

• OS: macOS
• Shell: zsh
• Terminal Emulator: iterm

To Reproduce
Steps to reproduce the behavior:

1. Start "pug -w {root folder to 100 states}"
2. select all the folders
3. Click i

Expected behavior
The real age of the job should be shown.

Screenshots

[leg100]

@Slevy35 I've posted a partial fix: the age is now updated when the state of the task changes.

5f3bb72

Rendering the "real age", i.e. updating the age every second, would take a little more work, to ensure there is not a performance hit. I'll do that as part of a broader refactoring.