add subtitle selection to player

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

@@ -125,7 +125,7 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginEnd="7dp"
-            android:text="@string/language"
+            android:text="@string/subtitles"
             android:textAllCaps="false"
             app:icon="@drawable/ic_baseline_subtitles_24"
             app:layout_constraintBottom_toBottomOf="parent"

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

@@ -35,7 +35,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginEnd="44dp"
-            android:text="@string/language"
+            android:text="@string/subtitles"
             android:textAlignment="center"
             android:textColor="@color/exo_white"
             android:textSize="16sp"

app/src/main/res/values-de-rDE/strings.xml

@@ -71,8 +71,10 @@
     <string name="next_episode">Nächste Folge</string>
     <string name="skip_opening">Intro überspringen</string>
     <string name="language">Sprache</string>
+    <string name="subtitles">Untertitel</string>
     <string name="episodes">Folgen</string>
     <string name="episode">Folge</string>
+    <string name="no_subtitles">Aus</string>
 
     <!-- Onboarding -->
     <string name="skip">Überspringen</string>

app/src/main/res/values/strings.xml

@@ -92,8 +92,10 @@
     <string name="time_min_sec" translatable="false">%1$02d:%2$02d</string>
     <string name="time_hour_min_sec" translatable="false">%1$d:%2$02d:%3$02d</string>
     <string name="language">Language</string>
+    <string name="subtitles">Subtitles</string>
     <string name="episodes">Episodes</string>
     <string name="episode">Episode</string>
+    <string name="no_subtitles">None</string>
 
     <!-- Onboarding -->
     <string name="skip">Skip</string>