Show news from the window the server serves

A host may serve fewer hours than the day. The hotspots answer may name its window
(`windowHours`, a whole number from 1 to 24); the layer keeps reports, the
feed, In view and the chosen event inside it, and the panel says
"Last 12 h" or "Last 24 h" accordingly. Without a window named, or with one
out of range, the layer keeps the full day as before.

src/i18n/locales/de.json

@@ -70,17 +70,17 @@
   "{severity} only": "Nur {severity}",
   "All categories": "Alle Kategorien",
   "Reading the news…": "Nachrichten werden gelesen…",
-  "News, last 24 hours": "Nachrichten der letzten 24 Stunden",
-  "Last 24 h": "Letzte 24 Std.",
+  "News, last {hours} hours": "Nachrichten der letzten {hours} Stunden",
+  "Last {hours} h": "Letzte {hours} Std.",
   "Hotspots": "Brennpunkte",
   "Severity": "Schweregrad",
   "Category": "Kategorie",
   "Include minor news": "Nebensächliche Meldungen einbeziehen",
   "Show event cards": "Ereigniskarten zeigen",
   "In view": "Im Blick",
-  "Nothing reported near here in the last 24 h": "In den letzten 24 h nichts in der Nähe gemeldet",
+  "Nothing reported near here in the last {hours} h": "In den letzten {hours} h nichts in der Nähe gemeldet",
   "Latest news": "Neueste Nachrichten",
-  "No news matches these filters in the last 24 h": "Keine Nachrichten der letzten 24 h passen zu diesen Filtern",
+  "No news matches these filters in the last {hours} h": "Keine Nachrichten der letzten {hours} h passen zu diesen Filtern",
   "Load older news": "Ältere Nachrichten laden",
   "How to read the map": "So liest man die Karte",
   "Colour: severity · icon: type of event": "Farbe: Schweregrad · Symbol: Art des Ereignisses",