PFW-1358 Change "More" button to single character

Firmware/mmu2/errors_list.h

@@ -284,7 +284,7 @@ static const char MSG_BTN_RESTART_MMU[] PROGMEM_I1 = ISTR("Reset MMU"); ////MSG_
 static const char MSG_BTN_UNLOAD[] PROGMEM_I1 = ISTR("Unload"); ////MSG_BTN_UNLOAD c=6
 static const char MSG_BTN_STOP[] PROGMEM_I1 = ISTR("Stop"); ////MSG_BTN_STOP c=5
 static const char MSG_BTN_DISABLE_MMU[] PROGMEM_I1 = ISTR("Disable"); ////MSG_BTN_DISABLE_MMU c=9
-static const char MSG_BTN_MORE[] PROGMEM_I1 = ISTR("More\x06"); ////MSG_BTN_MORE c=5
+static const char MSG_BTN_MORE[] PROGMEM_I1 = ISTR("\x06"); ////MSG_BTN_MORE c=5
 
 // Used to parse the buttons from Btns().
 static const char * const btnOperation[] PROGMEM = {