Fix timeline style in dark mode
What does this MR do and why?
In dark mode, the vertical line representing the timeline in an activity feed was a different color than the background in the places where it should be hidden. This is likely a result of incomplete refactoring when the default background color was applied. This is easily fixed by removing a css rule.
ℹ ️ What this MR does not do
There is a known issue with work item modal activity timelines that will be resolved separately. It involves interactions between the modal background color and the color used for the activity feed timeline. cf. #482034 (closed)
Screenshots or screen recordings
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How to set up and validate locally
- Check out this branch
- in the GDK, turn on dark mode
- Visit an issue or work item that has activity (note: not in a modal, visit the work item's full-page version via its URL)
- you will see that the activity feed timeline ends at the appropriate location.