🎨 Misc. config cleanup

Marlin/Configuration.h

 
 // Resistor values when using MAX31865 sensors (-5) on TEMP_SENSOR_0 / 1
 #if TEMP_SENSOR_IS_MAX_TC(0)
-  #define MAX31865_SENSOR_OHMS_0      100   // (Ω) Typically 100 or 1000 (PT100 or PT1000)
-  #define MAX31865_CALIBRATION_OHMS_0 430   // (Ω) Typically 430 for Adafruit PT100; 4300 for Adafruit PT1000
+  #define MAX31865_SENSOR_OHMS_0      100 // (Ω) Typically 100 or 1000 (PT100 or PT1000)
+  #define MAX31865_CALIBRATION_OHMS_0 430 // (Ω) Typically 430 for Adafruit PT100; 4300 for Adafruit PT1000
 #endif
 #if TEMP_SENSOR_IS_MAX_TC(1)
   #define MAX31865_SENSOR_OHMS_1      100

Marlin/Configuration_adv.h

    * and/or decrease WATCH_TEMP_INCREASE. WATCH_TEMP_INCREASE should not be set
    * below 2.
    */
-  #define WATCH_TEMP_PERIOD  20               // Seconds
+  #define WATCH_TEMP_PERIOD  40               // Seconds
   #define WATCH_TEMP_INCREASE 2               // Degrees Celsius
 #endif