[new editor] Unnecessary scrollbars in details/suggestions panels

Description

The new editor seems to have unnecessary scrollbars. In a themed window, they appear out of place and perhaps even misaligned.

See screenshot.

Environment

None

Status

Assignee

Kathryn Gough

Reporter

Damian Jansen

Labels

Tested Version/s

None

Components

Sprint

None

Fix versions

Affects versions

Priority

unspecified
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