Recover from playback stalls; cap quality over Bluetooth

On the Galaxy Mini, Wi-Fi and Bluetooth audio share one radio: streams starve
and the media player then sits at the same position forever while showing
playing. After 10 s without progress, recover like a network failure (reconnect
and resume, then download first, then skip). New setting: quality over
Bluetooth (default 192 kbps) to leave the radio airtime for the speaker.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

res/values/strings.xml

@@ -199,7 +199,7 @@
     <string name="sort_played">Máis escoitados</string>
     <string name="sort_title">Título</string>
     <string name="sort_year">Ano (máis recentes)</string>
-    <string name="stalled">A reprodución quedou parada. Proba a pausar e reproducir de novo.</string>
+    <string name="stalled">A reprodución quedou parada: a rede non dá abasto.</string>
     <string name="starting_x">Iniciando %1$s…</string>
     <string name="stream_interrupted">Interrompeuse a transmisión</string>
     <string name="surprise_me">Sorpréndeme</string>
@@ -236,4 +236,6 @@
     <string name="unloved">Quitada de favoritas</string>
     <string name="up_next">Cola</string>
     <string name="you">ti</string>
+    <string name="quality_bt_title">Calidade por Bluetooth</string>
+    <string name="set_quality_bt">Calidade por Bluetooth: %1$s</string>
 </resources>