Improve styling of data grid column header sorting icons
Improve styling of data grid column header sorting icons

Before: https://i.imgur.com/23fM3x3.mp4
After: https://i.imgur.com/MAna5ek.mp4

Bug: 3253323
Change-Id: Iab21a69fb06b5661a16d317691a5125bffe49455
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3253323
Reviewed-by: Jack Franklin <993fcadce4d04090da2fefd557a0995e7966c8d5@chromium.org>
Reviewed-by: Mraz Marian <cdb365f68ceade1f4a16e4219c00b1573f0bee45@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