Increment version code and update card styles

This commit updates the `versionCode` to 50 in `app/build.gradle`.

It also modifies the styles of several `MaterialCardView` elements:
- In `ad_about.xml`:
    - The main ad card (`ad_card`) style is changed from `Elevated` to `Filled`.
    - The nested card for the app icon (`@+id/app_icon_card`) style is changed to `Elevated`.
    - `cardPreventCornerOverlap` and `cardUseCompatPadding` attributes are removed from `ad_card`.
- In `fragment_about.xml`, the `card_view_about` style is changed from `Elevated` to `Filled`.
- In `ad_home_banner_large.xml`, the `MaterialCardView` style is changed from `Filled` to `Elevated`.

Author: MihaiCristianCondrea

app/build.gradle

@@ -13,7 +13,7 @@ android {
         applicationId 'com.d4rk.androidtutorials.java'
         minSdk 23
         targetSdk 36
-        versionCode 49
+        versionCode 50
         versionName '5.0.2'
         vectorDrawables.useSupportLibrary = true
         testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'

app/src/main/res/layout/ad_about.xml

@@ -6,11 +6,9 @@
 
     <com.google.android.material.card.MaterialCardView
         android:id="@+id/ad_card"
-        style="@style/Widget.Material3.CardView.Elevated"
+        style="@style/Widget.Material3.CardView.Filled"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        app:cardPreventCornerOverlap="true"
-        app:cardUseCompatPadding="false"
         app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.CardViewBottomRounded">
 
         <androidx.appcompat.widget.LinearLayoutCompat
@@ -32,8 +30,7 @@
                     android:layout_width="96dp"
                     android:layout_height="96dp"
                     app:cardCornerRadius="16dp"
-                    app:cardPreventCornerOverlap="true"
-                    app:cardUseCompatPadding="false"
+                    style="@style/Widget.Material3.CardView.Elevated"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent">
 

app/src/main/res/layout/ad_home_banner_large.xml

@@ -20,7 +20,7 @@
             <include layout="@layout/ad_attribution" />
 
             <com.google.android.material.card.MaterialCardView
-                style="@style/Widget.Material3.CardView.Filled"
+                style="@style/Widget.Material3.CardView.Elevated"
                 android:layout_width="match_parent"
                 android:layout_height="180dp"
                 android:layout_marginVertical="8dp"

app/src/main/res/layout/fragment_about.xml

@@ -14,7 +14,7 @@
 
         <com.google.android.material.card.MaterialCardView
             android:id="@+id/card_view_about"
-            style="@style/Widget.Material3.CardView.Elevated"
+            style="@style/Widget.Material3.CardView.Filled"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             app:contentPadding="16dp"