In [48456], database import and export icons were introduced. However, the arrows were pointing in the wrong directions. This reverses the arrows to be pointing correctly based on the action described in the name.
Props johnbillion, joen, desrosj, empireoflight.
Fixes#49913.
Built from https://develop.svn.wordpress.org/trunk@48506
git-svn-id: http://core.svn.wordpress.org/trunk@48268 1a063a9b-81f0-0310-95a4-ce76da25c4cd
c482c8e8ad
