Problem/Motivation
The Details caret is misaligned after changes were made for the Extend page. We still need the effects from the Extend page commit on the interior details elements, but we need the main Details element caret to revert to its old style, because it has caused all other Details carets to be misaligned now in Claro.
Proposed resolution
Revert the main details component caret styling to what we had before, and add new styling for interior details caret styling to match what was changed on the Extend page commit.