Turn page while playing (#1383) fixes #1365

* Add an EReader setting for turning when playing

This allows to allow the navigation with the Volume buttons even when
audiobooks are playing.

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Co-authored-by: advplyr <advplyr@protonmail.com>

strings/sv.json

@@ -176,8 +176,6 @@
   "LabelNarrator": "Berättare",
   "LabelNarrators": "Berättare",
   "LabelNavigateWithVolume": "Navigera med volymknapparna",
-  "LabelNavigateWithVolumeDisabled": "Av",
-  "LabelNavigateWithVolumeEnabled": "På",
   "LabelNavigateWithVolumeMirrored": "Speglad",
   "LabelNever": "Aldrig",
   "LabelNewestAuthors": "Senast tillagda författare",
@@ -186,6 +184,7 @@
   "LabelNotFinished": "Ej avslutad",
   "LabelNotStarted": "Inte påbörjad",
   "LabelOff": "Av",
+  "LabelOn": "På",
   "LabelPassword": "Lösenord",
   "LabelPath": "Sökväg",
   "LabelPlaybackDirect": "Direct",