Fix list arrow styling for issue description
Fix list arrow styling for issue description

The vertical alignment of the arrow symbol marking a list item as well
as the whitespace immediately following it were inconsistent. This CL
fixes this.

Screenshots:
before:
https://imgur.com/Dp14YEs
https://imgur.com/QSTsnP1

after:
https://imgur.com/2DC69x5
https://imgur.com/O5hUcAY

Bug: chromium:1057979
Change-Id: I287e5c34aaad6ef0e59057035233cf31814a6b13
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2192898
Reviewed-by: Simon Zünd <38944668e9e2ca98ccd0275b53370f90fa55c113@chromium.org>
Reviewed-by: Sigurd Schneider <f04d242e109628a27a0f75fd49a87722bcf291fd@chromium.org>
Commit-Queue: Wolfgang Beyer <573aa99bb19da47d816981118f95c945310dd3f4@chromium.org>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend