NPE on `updateConfiguration()` method

[JcMinarro]

updateConfiguration() method is called from the parent constructor, so our baseResources is not initialized yet and we get a NPE using it

 Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.content.res.Resources.updateConfiguration(android.content.res.Configuration, android.util.DisplayMetrics)' on a null object reference
        at com.jcminarro.philology.PhilologyResources.updateConfiguration(PhilologyResources.kt:65)
        at android.content.res.Resources.<init>(Resources.java:257)
        at android.content.res.Resources.<init>(Resources.java:234)
        at com.jcminarro.philology.PhilologyResources.<init>(PhilologyResources.kt:25)
        at com.jcminarro.philology.PhilologyContextWrapper$res$2.invoke(PhilologyContextWrapper.kt:17)
        at com.jcminarro.philology.PhilologyContextWrapper$res$2.invoke(PhilologyContextWrapper.kt:11)
        at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
        at com.jcminarro.philology.PhilologyContextWrapper.getRes(PhilologyContextWrapper.kt)
        at com.jcminarro.philology.PhilologyContextWrapper.getResources(PhilologyContextWrapper.kt:21)
        at android.content.ContextWrapper.getResources(ContextWrapper.java:86)
        at android.content.ContextWrapper.getResources(ContextWrapper.java:86)
        at android.view.ContextThemeWrapper.getResources(ContextThemeWrapper.java:74)
        at androidx.appcompat.app.AppCompatActivity.getResources(AppCompatActivity.java:543)
        at android.view.Window.getDefaultFeatures(Window.java:1306)
        at android.view.Window.<init>(Window.java:453)
        at com.android.internal.policy.impl.PhoneWindow.<init>(PhoneWindow.java:290)
        at com.android.internal.policy.impl.Policy.makeNewWindow(Policy.java:60)
        at com.android.internal.policy.PolicyManager.makeNewWindow(PolicyManager.java:57)
        at android.app.Activity.attach(Activity.java:5932)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2259)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) 
        at android.app.ActivityThread.access$800(ActivityThread.java:151) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:135) 
        at android.app.ActivityThread.main(ActivityThread.java:5254) 
        at java.lang.reflect.Method.invoke(Native Method) 

Originally posted by @antercepter in #29