i18n(charts): add need-more-distinct-days copy across six locales

Pre-existing empty-state copy ("Erfasse mindestens 3 Einträge, um die
Trendlinie freizuschalten") misleads when a user has logged many
measurements on too few calendar days. Add a second pair of strings
keyed on `charts.needMoreDistinctDays{Title,Description}` so the
upcoming chart-gate split can paint the right call-to-action when raw
count is sufficient but distinct-day count is not.

messages/de.json

@@ -852,6 +852,8 @@
     "legendMissed": "Verpasst",
     "emptyStateTitle": "Erfasse mehr Messungen, um Trends zu sehen",
     "emptyStateDescription": "Erfasse mindestens 3 Einträge, um die Trendlinie freizuschalten.",
+    "needMoreDistinctDaysTitle": "Mehr Messtage erforderlich",
+    "needMoreDistinctDaysDescription": "Erfasse an mehreren Tagen, um eine Trendlinie freizuschalten.",
     "personalBaseline": "Dein Mittel",
     "deltaVsBaseline": "{delta} vs. dein Mittel",
     "deltaUnchanged": "entspricht deinem Mittel",

messages/en.json

@@ -852,6 +852,8 @@
     "legendMissed": "Missed",
     "emptyStateTitle": "Add more measurements to see trends",
     "emptyStateDescription": "Log at least 3 entries to unlock the trend line.",
+    "needMoreDistinctDaysTitle": "More distinct days needed",
+    "needMoreDistinctDaysDescription": "Log on more days to unlock the trend line.",
     "personalBaseline": "Your normal",
     "deltaVsBaseline": "{delta} vs. your normal",
     "deltaUnchanged": "matches your normal",

messages/es.json

@@ -852,6 +852,8 @@
     "legendMissed": "Omitida",
     "emptyStateTitle": "Registra más mediciones para ver tendencias",
     "emptyStateDescription": "Registra al menos 3 entradas para desbloquear la línea de tendencia.",
+    "needMoreDistinctDaysTitle": "Se necesitan más días distintos",
+    "needMoreDistinctDaysDescription": "Registra en más días para desbloquear la línea de tendencia.",
     "personalBaseline": "Tu media",
     "deltaVsBaseline": "{delta} vs. tu media",
     "deltaUnchanged": "coincide con tu media",

messages/fr.json

@@ -852,6 +852,8 @@
     "legendMissed": "Manquée",
     "emptyStateTitle": "Saisis plus de mesures pour voir les tendances",
     "emptyStateDescription": "Saisis au moins 3 entrées pour débloquer la courbe de tendance.",
+    "needMoreDistinctDaysTitle": "Plus de jours distincts requis",
+    "needMoreDistinctDaysDescription": "Saisis sur plusieurs jours pour débloquer la courbe de tendance.",
     "personalBaseline": "Ta moyenne",
     "deltaVsBaseline": "{delta} vs. ta moyenne",
     "deltaUnchanged": "correspond à ta moyenne",

messages/it.json

@@ -852,6 +852,8 @@
     "legendMissed": "Mancata",
     "emptyStateTitle": "Registra altre misurazioni per vedere i trend",
     "emptyStateDescription": "Registra almeno 3 voci per sbloccare la linea di tendenza.",
+    "needMoreDistinctDaysTitle": "Servono più giorni distinti",
+    "needMoreDistinctDaysDescription": "Registra in più giorni per sbloccare la linea di tendenza.",
     "personalBaseline": "La tua media",
     "deltaVsBaseline": "{delta} vs. la tua media",
     "deltaUnchanged": "corrisponde alla tua media",

messages/pl.json

@@ -852,6 +852,8 @@
     "legendMissed": "Pominięta",
     "emptyStateTitle": "Zarejestruj więcej pomiarów, aby zobaczyć trendy",
     "emptyStateDescription": "Zarejestruj co najmniej 3 wpisy, aby odblokować linię trendu.",
+    "needMoreDistinctDaysTitle": "Potrzeba więcej różnych dni",
+    "needMoreDistinctDaysDescription": "Rejestruj w więcej dni, aby odblokować linię trendu.",
     "personalBaseline": "Twoja średnia",
     "deltaVsBaseline": "{delta} vs. twoja średnia",
     "deltaUnchanged": "odpowiada twojej średniej",