Add health_screen_enabled and fix comments

health_screen_enabled will be used for turning on/off the screen for health telemetry.

Also fixed some commands on other existing variables that were incorrect.

meshtastic/module_config.proto

@@ -563,20 +563,18 @@ message ModuleConfig {
  uint32 air_quality_interval = 7;
 
  /*
- * Interval in seconds of how often we should try to send our
- * air quality metrics to the mesh
+ * Enable/disable Power metrics
  */
  bool power_measurement_enabled = 8;
 
  /*
  * Interval in seconds of how often we should try to send our
- * air quality metrics to the mesh
+ * power metrics to the mesh
  */
  uint32 power_update_interval = 9;
 
  /*
- * Interval in seconds of how often we should try to send our
- * air quality metrics to the mesh
+ * Enable/Disable the power measurement module on-device display
  */
  bool power_screen_enabled = 10;
 
@@ -591,6 +589,11 @@ message ModuleConfig {
  * health metrics to the mesh
  */
  uint32 health_update_interval = 12;
+
+ /*
+ * Enable/Disable the health telemetry module on-device display
+ */
+ bool health_screen_enabled = 13;
  }
 
  /*