Should this task be closed and a new one created for improving the sandbox usability? Currently when edit box has a lot of text, it shows two sets of the scrollbars - one for the editor's container, and another for the editor itself.
If this is solved, just close it. If you found another issue not covered by this task, please open new.
The columns in Technical-Debt workboard is purely about tasks they contain, not about the entire product. Thus since this task is about refactoring the formatting a bit, it went to the Rewrite / Refactor column...