💥 Rename ExtUI settings methods

Marlin/src/lcd/extui/dgus/dgus_extui.cpp

@@ -102,12 +102,12 @@ namespace ExtUI {
     // Called after loading or resetting stored settings
   }
 
-  void onConfigurationStoreWritten(bool success) {
+  void onSettingsStored(bool success) {
     // Called after the entire EEPROM has been written,
     // whether successful or not.
   }
 
-  void onConfigurationStoreRead(bool success) {
+  void onSettingsLoaded(bool success) {
     // Called after the entire EEPROM has been read,
     // whether successful or not.
   }