We have two exclusive categories in the Appearance category:
minimize-animations and show-desktop. But it's hard to draw a line
between them, i.e. one can't say whether given effect belongs to the
minimize-animations category or to the show-desktop category.
This change moves minimize effects to their own category so we have only
one exclusive category in the Appearance category.
Before:
{F6160592, layout=center, size=full}
After:
{F6160597, layout=center, size=full}
{F6160598, layout=center, size=full}