- Refactored the function name from calculateMcScale to getMcScale since we changed how it behaves

- Optimized auto scale operations
- Removed some junk I've put there myself
- Getting a value will load the setting list if not done already.

app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MainActivity.java

@@ -111,6 +111,7 @@ public class MainActivity extends BaseMainActivity {
             public void onEvent(int i, @Nullable String s) {
                 //FIXME Make sure the multithreading nature of this event doesn't cause any problems ?
                 MCOptionUtils.load();
+                getMcScale();
             }
         };
         fileObserver.startWatching();