cinnamon-desktop-editor.py: Add import path.

Since 0344b11, cinnamon-menu-editor crashes at startup
when it imports JsonSettingsWidgets.

Author: mtwebster

files/usr/share/cinnamon/cinnamon-desktop-editor/cinnamon-desktop-editor.py

@@ -18,6 +18,7 @@
 sys.path.insert(0, '/usr/share/cinnamon/cinnamon-menu-editor')
 from cme import util
 
+sys.path.insert(0, '/usr/share/cinnamon/cinnamon-settings')
 sys.path.insert(0, '/usr/share/cinnamon/cinnamon-settings/bin')
 import JsonSettingsWidgets