Provide a "Time Remaining" Value When Using a Timer

Is your feature request related to a problem? Please describe.

Hi!

We've been experimenting with using timers (using sleep, for example) in our Workflows. And while the total duration of a Timer is easy to see (thank you!) in the UI, for longer timers it be hard to understand how much time is left until the timer completes.

Describe the solution you'd like

When clicking on a Timer in the Workflow Run, it would be helpful if a "Time Remaining" value were visible to the user. I'd imagine this would be calculated only on the page and not in any API request/response.

Using an existing UI sample from a real workflow (under the Additional Context section_, it might make sense for this value to be one of the values in the table on the "right" when viewing the Timer details with a label of "Time Remaining." I could also see this being "Estimated Remaining Time" as some timers can be updated via Signals.

Describe alternatives you've considered

None at this time.

Additional context

Start in the Workflow Run UI by locating the Timer details view and the existing display of total timer duration. Add a client-side Time Remaining or Estimated Remaining Time value there, accounting for timers that may be updated via Signals; done means the value is visible when a user selects a Timer.