[REQUEST] Add some indicator of the time passed since the last update of a PR

[arielj]

Branch/Commit:

Main branch

Describe the feature:

It would be helpful to have some kind of indicator for each PR to show that the PR has been stale for more than 24hs, that way it would be easier to see if there's some PR that needs to be prioritized. It could take the updated_at value to compare. Maybe the indicator can turn red if it's more than a few days to show more urgency.

Mockups:

Just an idea:

I will abide by the code of conduct