Update German translation

Also remove a string that was not supposed to be translated.
It is a preference key. Maybe it should not be in strings.xml but in its own file.

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

@@ -85,4 +85,12 @@
   <string name="miband_prefs_gender">Geschlecht</string>
   <string name="miband_prefs_height_cm">Größe in cm</string>
   <string name="miband_prefs_weight_kg">Gewicht in kg</string>
+  <string name="busy_task_fetch_activity_data">Hole Aktivitätsdaten</string>
+  <string name="controlcenter_disconnect">Trennen</string>
+  <string name="controlcenter_fetch_activity_data">Aktivitätsdaten holen</string>
+  <string name="controlcenter_start_sleepmonitor">Schlafmonitor (ALPHA)</string>
+  <string name="initializing">initialisiere</string>
+  <string name="pref_header_vibration_count">Anzahl der Vibrationen</string>
+  <string name="pref_write_logfiles">Log-Dateien schreiben (Neustart erforderlich)</string>
+  <string name="title_activity_sleepmonitor">Schlafmonitor</string>
 </resources>

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

@@ -87,6 +87,5 @@
   <string name="miband_prefs_weight_kg">Peso en kg</string>
   <string name="pref_header_vibration_count">Recuento de vibración</string>
   <string name="title_activity_sleepmonitor">Monitor de sueño</string>
-  <string name="pref_log_to_file">LogAFichero</string>
   <string name="pref_write_logfiles">Escribe archivos de registro (requiere reiniciar)</string>
 </resources>

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

@@ -87,6 +87,5 @@
   <string name="miband_prefs_weight_kg">Peso in kg</string>
   <string name="pref_header_vibration_count">Numero vibrazioni</string>
   <string name="title_activity_sleepmonitor">Monitoraggio del sonno</string>
-  <string name="pref_log_to_file">LogToFile</string>
   <string name="pref_write_logfiles">Salva il log su file (richiede riavvio)</string>
 </resources>

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

@@ -87,6 +87,5 @@
   <string name="miband_prefs_weight_kg">몸무게 (kg)</string>
   <string name="pref_header_vibration_count">진동 횟수</string>
   <string name="title_activity_sleepmonitor">수면 측정계</string>
-  <string name="pref_log_to_file">파일에 기록</string>
   <string name="pref_write_logfiles">기록 파일 작성 (재시작 필요)</string>
 </resources>

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

@@ -102,7 +102,6 @@
     <string name="pref_header_vibration_count">Titreşim adedi</string>
 
     <string name="title_activity_sleepmonitor">Uyku Monitörü</string>
-    <string name="pref_log_to_file">Dosyaya yazdır</string>
     <string name="pref_write_logfiles">Kütük dosyalarını yaz (yeniden başlatmak gerekir)</string>
     <string name="initializing">başlatılıyor</string>
     <string name="busy_task_fetch_activity_data">Aktivite verisi alınıyor</string>