BHV-13959: Drawer: Now Icons gets Display in Handle

Issue:
Drawer: Icons Do Not Display in Handle
moonstone-icons.less file has been removed due to which the icons are not getting overridden.
Fix:
moonstone-icons.less file has been again added so that the icons gets overridden in Handle.

Enyo-DCO-1.1-Signed-off-by: Anshu Agrawal anshu.agrawal@lge.com