Break Toolbox into two rows

The current ToolBox has too many items and ends up often overflowing the screen,
rendering labels unreadable, and in some cases, items inaccessible.

This is a quick-fix commit to ensure that the toolbox doesn't exceed
screen bounds for more cases, as a 'proper' fix of wrapping items based
on available space is exceedingly difficult to implement with the
architecture of the toolbox.
2 jobs for !773 with work/janb/toolbox-wrapped in 2 minutes and 58 seconds (queued for 5 seconds)
latest merge request