AntennaPod gets a Next chapter button in the car

AntennaPod takes the command whenever it plays, but only offers the
button when it's turned on in its own notification settings.

gearslip/src/main/res/values-tr/strings.xml

@@ -833,4 +833,5 @@
     <string name="places_clear">Temizle</string>
     <string name="settings_language">Dil</string>
     <string name="settings_language_phone">Telefonla aynı</string>
+    <string name="player_next_chapter">Sonraki bölüm</string>
 </resources>