Update SuperCollapsedBlock colors

Author: KevinBoulongne

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

@@ -24,21 +24,21 @@
     <View
         android:layout_width="match_parent"
         android:layout_height="1dp"
-        android:background="@color/border"
+        android:background="@color/dividerColor"
         app:layout_constraintBottom_toTopOf="@id/mid" />
 
     <View
         android:id="@+id/mid"
         android:layout_width="match_parent"
         android:layout_height="8dp"
-        android:background="@color/elevatedBackground"
+        android:background="@color/backgroundColor"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
     <View
         android:layout_width="match_parent"
         android:layout_height="1dp"
-        android:background="@color/border"
+        android:background="@color/dividerColor"
         app:layout_constraintTop_toBottomOf="@id/mid" />
 
     <com.google.android.material.button.MaterialButton
@@ -53,7 +53,7 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:strokeColor="@color/border"
+        app:strokeColor="@color/dividerColor"
         app:strokeWidth="1dp"
         tools:text="@string/superCollapsedBlock" />