Updated the card menu and watch messages to make it more informative.

Marlin/language.h

 	#define MSG_LOAD_EPROM "Load memory"
 	#define MSG_RESTORE_FAILSAFE "Restore Failsafe"
 	#define MSG_REFRESH "Refresh"
-	#define MSG_WATCH "Watch"
+	#define MSG_WATCH "Info screen"
 	#define MSG_PREPARE "Prepare"
 	#define MSG_TUNE "Tune"
 	#define MSG_PAUSE_PRINT "Pause Print"
 	#define MSG_RESUME_PRINT "Resume Print"
 	#define MSG_STOP_PRINT "Stop Print"
-	#define MSG_CARD_MENU "Card Menu"
+	#define MSG_CARD_MENU "Print from SD"
 	#define MSG_NO_CARD "No Card"
 	#define MSG_DWELL "Sleep..."
 	#define MSG_USERWAIT "Wait for user..."