STORM-1918 Part of the group notice attachment box does not allow dropping of assets.

doc/contributions.txt

@@ -642,6 +642,7 @@ Jonathan Yap
 	STORM-1872
 	STORM-1858
 	STORM-1862
+	STORM-1918
 Kadah Coba
 	STORM-1060
 Jondan Lundquist

indra/newview/skins/default/xui/en/panel_group_notices.xml

@@ -202,14 +202,14 @@ Maximum 200 per group daily
             Drag and drop item here to attach it:
         </text>
         <icon
-         height="72"
+         height="48"
          image_name="DropTarget"
          layout="topleft"
          left_pad="10"
          mouse_opaque="true"
          name="drop_icon"
          top_delta="-10"
-         width="72" />
+         width="110" />
         <button
          follows="left|top"
          layout="topleft"