Fix custom theme not applying to main screen correctly

We were using the SplashScreen incorrectly. While it isn't consistently
documented, I managed to find a small note on
https://developer.android.com/reference/kotlin/androidx/core/splashscreen/SplashScreen#usage-of-the-core-splashscreen-library:
which states that installSplashScreen has to be called BEFORE onCreate.
Doing this fixing some theming bugs and allows deleting a hacky and
buggy workaround.

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased - 110
+
+- Fix custom theme not applying to main screen correctly
+
 ## v2.17.1 - 109
 
 - Fix incorrect text colour on "No barcode" button

app/src/main/java/protect/card_locker/CatimaAppCompatActivity.java

@@ -19,10 +19,7 @@ public class CatimaAppCompatActivity extends AppCompatActivity {
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        // XXX splash screen activity has to do this after installing splash screen before view inflate
-        if (!this.getClass().getSimpleName().equals(MainActivity.class.getSimpleName())) {
-            Utils.patchColors(this);
-        }
+        Utils.patchColors(this);
     }
 
     @Override

app/src/main/java/protect/card_locker/MainActivity.java

@@ -218,8 +218,8 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
     @Override
     protected void onCreate(Bundle inputSavedInstanceState) {
         extractIntentFields(getIntent());
-        super.onCreate(inputSavedInstanceState);
         SplashScreen.installSplashScreen(this);
+        super.onCreate(inputSavedInstanceState);
         if(!mArchiveMode) {
             setTitle(R.string.app_name);
             setContentView(R.layout.main_activity);
@@ -228,8 +228,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
             setTitle(R.string.archiveList);
             setContentView(R.layout.archive_activity);
         }
-        // XXX color patching has to be done again after setting splash screen
-        Utils.patchColors(this);
+
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
 
@@ -242,8 +241,6 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
 
         mDatabase = new DBHelper(this).getWritableDatabase();
 
-
-
         TabLayout groupsTabLayout = findViewById(R.id.groups);
         groupsTabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
             @Override