Hide Cast & Crew section when there are none

app/src/main/java/dev/jdtech/jellyfin/fragments/MediaInfoFragment.kt

@@ -55,6 +55,13 @@ class MediaInfoFragment : Fragment() {
             }
         })
 
+        viewModel.actors.observe(viewLifecycleOwner, { actors ->
+            when (actors.isNullOrEmpty()) {
+                false -> binding.actors.visibility = View.VISIBLE
+                true -> binding.actors.visibility = View.GONE
+            }
+        })
+
         viewModel.navigateToPlayer.observe(viewLifecycleOwner, { mediaSource ->
             mediaSource.id?.let {
                 navigateToPlayerActivity(

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

@@ -348,6 +348,7 @@
             </LinearLayout>
 
             <LinearLayout
+                android:id="@+id/actors"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:orientation="vertical">