Add 4th extruder

Marlin/language_fr.h

@@ -21,14 +21,16 @@
 #define MSG_PREHEAT_PLA0                    "Prechauff. PLA 1"
 #define MSG_PREHEAT_PLA1                    "Prechauff. PLA 2"
 #define MSG_PREHEAT_PLA2                    "Prechauff. PLA 3"
-#define MSG_PREHEAT_PLA012                  "Prech. PLA Tout"
+#define MSG_PREHEAT_PLA3                    "Prechauff. PLA 4"
+#define MSG_PREHEAT_PLA0123                 "Prech. PLA Tout"
 #define MSG_PREHEAT_PLA_BEDONLY             "Prech. PLA Plateau"
 #define MSG_PREHEAT_PLA_SETTINGS            "Regl. prech. PLA"
 #define MSG_PREHEAT_ABS                     "Prechauffage ABS"
 #define MSG_PREHEAT_ABS0                    "Prechauff. ABS 1"
 #define MSG_PREHEAT_ABS1                    "Prechauff. ABS 2"
 #define MSG_PREHEAT_ABS2                    "Prechauff. ABS 3"
-#define MSG_PREHEAT_ABS012                  "Prech. ABS Tout"
+#define MSG_PREHEAT_ABS3                    "Prechauff. ABS 4"
+#define MSG_PREHEAT_ABS0123                 "Prech. ABS Tout"
 #define MSG_PREHEAT_ABS_BEDONLY             "Prech. ABS Plateau"
 #define MSG_PREHEAT_ABS_SETTINGS            "Regl. prech. ABS"
 #define MSG_COOLDOWN                        "Refroidir"