Activate warning about possible reduced accuracy by default

Renamed `WARN_REDUCED_ACCURACY` to `DISABLE_REDUCED_ACCURACY_WARNING`

Changed the condition for blinking from
```
#if ENABLED(WARN_REDUCED_ACCURACY)
```
to
```
#if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
```

Marlin/Configuration.h

@@ -355,7 +355,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/dogm_lcd_implementation.h

@@ -357,7 +357,7 @@ static void lcd_implementation_status_screen() {
     if (!axis_homed[X_AXIS])
       lcd_printPGM(PSTR("?"));
     else
-      #if ENABLED(WARN_REDUCED_ACCURACY)
+      #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
         if (!axis_known_position[X_AXIS])
           lcd_printPGM(PSTR(" "));
         else
@@ -376,7 +376,7 @@ static void lcd_implementation_status_screen() {
     if (!axis_homed[Y_AXIS])
       lcd_printPGM(PSTR("?"));
     else
-      #if ENABLED(WARN_REDUCED_ACCURACY)
+      #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
         if (!axis_known_position[Y_AXIS])
           lcd_printPGM(PSTR(" "));
         else
@@ -395,7 +395,7 @@ static void lcd_implementation_status_screen() {
     if (!axis_homed[Z_AXIS])
       lcd_printPGM(PSTR("?"));
     else
-      #if ENABLED(WARN_REDUCED_ACCURACY)
+      #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
         if (!axis_known_position[Z_AXIS])
           lcd_printPGM(PSTR(" "));
         else

Marlin/example_configurations/Felix/Configuration.h

@@ -337,7 +337,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/Felix/Configuration_DUAL.h

@@ -321,7 +321,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 #define DISABLE_E false // For all extruders
 #define DISABLE_INACTIVE_EXTRUDER true //disable only inactive extruders and keep active extruder enabled
 

Marlin/example_configurations/Hephestos/Configuration.h

@@ -347,7 +347,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/K8200/Configuration.h

@@ -370,7 +370,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false // not for K8200 -> looses Steps
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

@@ -355,7 +355,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/RigidBot/Configuration.h

@@ -346,7 +346,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/SCARA/Configuration.h

@@ -363,7 +363,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/TAZ4/Configuration.h

@@ -375,7 +375,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/WITBOX/Configuration.h

@@ -347,7 +347,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 #define DISABLE_Y false
 #define DISABLE_Z true
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/adafruit/ST7565/Configuration.h

@@ -355,7 +355,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/delta/biv2.5/Configuration.h

@@ -390,7 +390,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/delta/generic/Configuration.h

@@ -390,7 +390,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/delta/kossel_mini/Configuration.h

@@ -390,7 +390,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/delta/kossel_pro/Configuration.h

@@ -377,7 +377,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/makibox/Configuration.h

@@ -358,7 +358,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the l
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/example_configurations/tvrrug/Round2/Configuration.h

@@ -345,7 +345,7 @@ const bool Z_MIN_PROBE_ENDSTOP_INVERTING = true; // set to true to invert the lo
 #define DISABLE_Y false
 #define DISABLE_Z false
 // Warn on display about possibly reduced accuracy
-//#define WARN_REDUCED_ACCURACY
+//#define DISABLE_REDUCED_ACCURACY_WARNING
 
 // @section extruder
 

Marlin/ultralcd_implementation_hitachi_HD44780.h

@@ -625,7 +625,7 @@ static void lcd_implementation_status_screen() {
           if (!axis_homed[X_AXIS])
             lcd_printPGM(PSTR("?"));
           else 
-            #if ENABLED(WARN_REDUCED_ACCURACY)
+            #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
               if (!axis_known_position[X_AXIS])
                 lcd_printPGM(PSTR(" "));
               else
@@ -642,7 +642,7 @@ static void lcd_implementation_status_screen() {
           if (!axis_homed[Y_AXIS])
             lcd_printPGM(PSTR("?"));
           else 
-            #if ENABLED(WARN_REDUCED_ACCURACY)
+            #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
               if (!axis_known_position[Y_AXIS])
                 lcd_printPGM(PSTR(" "));
               else
@@ -662,7 +662,7 @@ static void lcd_implementation_status_screen() {
       if (!axis_homed[Z_AXIS])
         lcd_printPGM(PSTR("?"));
       else 
-        #if ENABLED(WARN_REDUCED_ACCURACY)
+        #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
           if (!axis_known_position[Z_AXIS])
             lcd_printPGM(PSTR(" "));
           else