Media repository no longer uses deprecated API.

res/drawable/ic_baseline_folder_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M10,4H4c-1.1,0 -1.99,0.9 -1.99,2L2,18c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2V8c0,-1.1 -0.9,-2 -2,-2h-8l-2,-2z"/>
+</vector>

res/layout/mediapicker_folder_item.xml

@@ -33,7 +33,8 @@
             android:layout_width="20dp"
             android:layout_height="20dp"
             android:layout_marginEnd="6dp"
-            android:src="@drawable/ic_folder_white_48dp"/>
+            android:tint="@android:color/white"
+            android:src="@drawable/ic_baseline_folder_24"/>
 
         <TextView
             android:id="@+id/mediapicker_folder_item_title"