Make desktop files translated

bus/ibus.desktop.in

@@ -1,8 +1,8 @@
 [Desktop Entry]
 Encoding=UTF-8
-Name=IBus
-GenericName=IBus input method framework
-Comment=IBus input method framework
+_Name=IBus
+_GenericName=IBus input method framework
+_Comment=IBus input method framework
 Exec=ibus-daemon --xim
 Icon=ibus
 Terminal=false

setup/ibus-setup.desktop.in

@@ -1,8 +1,8 @@
 [Desktop Entry]
 Encoding=UTF-8
-Name=IBus Preferences
-GenericName=IBus Preferences
-Comment=Setup utility for IBus
+_Name=IBus Preferences
+_GenericName=IBus Preferences
+_Comment=IBus Preferences
 Exec=ibus-setup
 Icon=ibus-setup
 Terminal=false