The previous code didn't set the header wrapping div to be flex, and it didn't justify content itself, meaning that the 'more memory loader' took up the full width.
How to test
Confirm that the hit target of the more memory loader is limited to the text itself.
Alternatively, the more memory renderer could wrap itself so that it still took up the whole width, but only the text was the hit target. If this seems preferable, it can be implemented.
What it does
Fixes #134
The previous code didn't set the header wrapping div to be flex, and it didn't justify content itself, meaning that the 'more memory loader' took up the full width.
How to test
Review checklist
Reminder for reviewers