In Juno when I get errors in my code I get pink message boxes either inline
or at the end or both. But after a while I get an accumulation of boxes and
I cannot clear them. They just stack up and clutter the editor space. Right
clicking on the older ones only gives an evaluate and other not useful
options. If I inspect the box and remove it right away without leaving it
there, then it appear to not be a problem. In general, a lack of an ability
to close any message box or any pop-up at will seems undesirable.
