Properly terminate property_info lists

BListView's property_info list lacked termination, resulting in
garbage output at the and of 'hey getsuites'.

Use { 0 } everywhere for sake of consistency.

Thanks to waddlesplash for spotting the bug an providing the easy fix.

src/kits/interface/Menu.cpp

@@ -195,7 +195,7 @@ static property_info sPropList[] = {
 		"current specifier off the stack."
 	},
 
-	{}
+	{ 0 }
 };