Use high-res callcard for TransparentContactPhoto

Closes #5228

// FREEBIE

src/org/thoughtcrime/securesms/contacts/avatars/TransparentContactPhoto.java

@@ -2,6 +2,7 @@ package org.thoughtcrime.securesms.contacts.avatars;
 
 import android.content.Context;
 import android.graphics.drawable.Drawable;
+import android.support.v4.content.ContextCompat;
 
 import com.makeramen.roundedimageview.RoundedDrawable;
 
@@ -23,6 +24,6 @@ public class TransparentContactPhoto implements ContactPhoto {
 
   @Override
   public Drawable asCallCard(Context context) {
-    return context.getResources().getDrawable(R.drawable.ic_contact_picture);
+    return ContextCompat.getDrawable(context, R.drawable.ic_contact_picture_large);
   }
 }