GitLab

While I'm in there add a style to make the swimlane dividers impossible
to select, which was a persistent nuisance.

Bug: 1068233
Change-Id: Ie4b1b10fe39823102e9ec36d6396865b49e5de32
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2144261
Commit-Queue: Sigurður Ásgeirsson <siggi@chromium.org>
Reviewed-by: dpapad <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#758021}