i18n: translate HealthKit metric labels and the generic load-error string

Fill the remaining English-fallback values in es/fr/it/pl for the Apple
Health / WHOOP measurement-type labels (irregular-rhythm, high/low heart
rate, walking steadiness, breathing disturbance, recovery/stress/strain
scores) and the shared common.loadFailed message.

messages/es.json

@@ -8,7 +8,7 @@
     "create": "Crear",
     "close": "Cerrar",
     "loading": "Cargando…...",
-    "loadFailed": "Could not load",
+    "loadFailed": "No se pudo cargar",
     "error": "Error",
     "saved": "Guardado",
     "no": "No",
@@ -444,14 +444,14 @@
     "typeStairAscentSpeed": "Velocidad subiendo escaleras",
     "typeStairDescentSpeed": "Velocidad bajando escaleras",
     "typeBreathingDisturbances": "Alteraciones respiratorias del sueño",
-    "typeIrregularRhythmNotification": "Irregular rhythm notification",
-    "typeHighHeartRateEvent": "High heart rate notification",
-    "typeLowHeartRateEvent": "Low heart rate notification",
-    "typeWalkingSteadinessEvent": "Walking steadiness alert",
-    "typeBreathingDisturbanceEvent": "Breathing disturbance",
-    "typeRecoveryScore": "Recovery score",
-    "typeStressScore": "Stress score",
-    "typeStrainScore": "Strain score",
+    "typeIrregularRhythmNotification": "Aviso de ritmo irregular",
+    "typeHighHeartRateEvent": "Aviso de frecuencia cardíaca alta",
+    "typeLowHeartRateEvent": "Aviso de frecuencia cardíaca baja",
+    "typeWalkingSteadinessEvent": "Aviso de estabilidad al caminar",
+    "typeBreathingDisturbanceEvent": "Alteración respiratoria",
+    "typeRecoveryScore": "Puntuación de recuperación",
+    "typeStressScore": "Puntuación de estrés",
+    "typeStrainScore": "Puntuación de esfuerzo",
     "typeHrvRmssd": "VFC (RMSSD)",
     "typeDayStrain": "Esfuerzo del día",
     "typeWorkoutStrain": "Esfuerzo del entrenamiento",

messages/fr.json

@@ -8,7 +8,7 @@
     "create": "Créer",
     "close": "Fermer",
     "loading": "Chargement…...",
-    "loadFailed": "Could not load",
+    "loadFailed": "Impossible de charger",
     "error": "Erreur",
     "saved": "Enregistré",
     "no": "Non",
@@ -444,14 +444,14 @@
     "typeStairAscentSpeed": "Vitesse en montée d'escaliers",
     "typeStairDescentSpeed": "Vitesse en descente d'escaliers",
     "typeBreathingDisturbances": "Troubles respiratoires du sommeil",
-    "typeIrregularRhythmNotification": "Irregular rhythm notification",
-    "typeHighHeartRateEvent": "High heart rate notification",
-    "typeLowHeartRateEvent": "Low heart rate notification",
-    "typeWalkingSteadinessEvent": "Walking steadiness alert",
-    "typeBreathingDisturbanceEvent": "Breathing disturbance",
-    "typeRecoveryScore": "Recovery score",
-    "typeStressScore": "Stress score",
-    "typeStrainScore": "Strain score",
+    "typeIrregularRhythmNotification": "Notification de rythme irrégulier",
+    "typeHighHeartRateEvent": "Notification de fréquence cardiaque élevée",
+    "typeLowHeartRateEvent": "Notification de fréquence cardiaque basse",
+    "typeWalkingSteadinessEvent": "Alerte de stabilité de la marche",
+    "typeBreathingDisturbanceEvent": "Trouble respiratoire",
+    "typeRecoveryScore": "Score de récupération",
+    "typeStressScore": "Score de stress",
+    "typeStrainScore": "Score d'effort",
     "typeHrvRmssd": "VFC (RMSSD)",
     "typeDayStrain": "Effort du jour",
     "typeWorkoutStrain": "Effort de la séance",

messages/it.json

@@ -8,7 +8,7 @@
     "create": "Crea",
     "close": "Chiudi",
     "loading": "Caricamento…...",
-    "loadFailed": "Could not load",
+    "loadFailed": "Impossibile caricare",
     "error": "Errore",
     "saved": "Salvato",
     "no": "No",
@@ -444,14 +444,14 @@
     "typeStairAscentSpeed": "Velocità in salita scale",
     "typeStairDescentSpeed": "Velocità in discesa scale",
     "typeBreathingDisturbances": "Disturbi respiratori nel sonno",
-    "typeIrregularRhythmNotification": "Irregular rhythm notification",
-    "typeHighHeartRateEvent": "High heart rate notification",
-    "typeLowHeartRateEvent": "Low heart rate notification",
-    "typeWalkingSteadinessEvent": "Walking steadiness alert",
-    "typeBreathingDisturbanceEvent": "Breathing disturbance",
-    "typeRecoveryScore": "Recovery score",
-    "typeStressScore": "Stress score",
-    "typeStrainScore": "Strain score",
+    "typeIrregularRhythmNotification": "Notifica di ritmo irregolare",
+    "typeHighHeartRateEvent": "Notifica di frequenza cardiaca alta",
+    "typeLowHeartRateEvent": "Notifica di frequenza cardiaca bassa",
+    "typeWalkingSteadinessEvent": "Avviso di stabilità della camminata",
+    "typeBreathingDisturbanceEvent": "Disturbo respiratorio",
+    "typeRecoveryScore": "Punteggio di recupero",
+    "typeStressScore": "Punteggio di stress",
+    "typeStrainScore": "Punteggio di sforzo",
     "typeHrvRmssd": "HRV (RMSSD)",
     "typeDayStrain": "Sforzo giornaliero",
     "typeWorkoutStrain": "Sforzo dell'allenamento",

messages/pl.json

@@ -8,7 +8,7 @@
     "create": "Utwórz",
     "close": "Zamknij",
     "loading": "Ładowanie…...",
-    "loadFailed": "Could not load",
+    "loadFailed": "Nie udało się załadować",
     "error": "Błąd",
     "saved": "Zapisano",
     "no": "Nie",
@@ -444,14 +444,14 @@
     "typeStairAscentSpeed": "Prędkość wchodzenia po schodach",
     "typeStairDescentSpeed": "Prędkość schodzenia po schodach",
     "typeBreathingDisturbances": "Zaburzenia oddychania we śnie",
-    "typeIrregularRhythmNotification": "Irregular rhythm notification",
-    "typeHighHeartRateEvent": "High heart rate notification",
-    "typeLowHeartRateEvent": "Low heart rate notification",
-    "typeWalkingSteadinessEvent": "Walking steadiness alert",
-    "typeBreathingDisturbanceEvent": "Breathing disturbance",
-    "typeRecoveryScore": "Recovery score",
-    "typeStressScore": "Stress score",
-    "typeStrainScore": "Strain score",
+    "typeIrregularRhythmNotification": "Powiadomienie o nieregularnym rytmie",
+    "typeHighHeartRateEvent": "Powiadomienie o wysokim tętnie",
+    "typeLowHeartRateEvent": "Powiadomienie o niskim tętnie",
+    "typeWalkingSteadinessEvent": "Alert stabilności chodu",
+    "typeBreathingDisturbanceEvent": "Zaburzenie oddychania",
+    "typeRecoveryScore": "Wynik regeneracji",
+    "typeStressScore": "Wynik stresu",
+    "typeStrainScore": "Wynik obciążenia",
     "typeHrvRmssd": "HRV (RMSSD)",
     "typeDayStrain": "Obciążenie dzienne",
     "typeWorkoutStrain": "Obciążenie treningowe",