Dashboard Studio 1.6.0: app icon, clock weather, icon-only tab rail

- App store icon (icon.png) and favicon, drawn by tools/make_icon.py
- Clock can show a weather entity with today's high and low from
  weather.get_forecasts
- Side menu gets an icon-only rail style (now the default): full height,
  centered icons, active marker, names as hover/focus tooltips; phones
  keep a labelled bottom tab bar

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

dashboard_studio/web/i18n.js

@@ -239,6 +239,9 @@
     "Choose the appliance’s status, power or remaining-time entity in the inspector.": "Kies in de inspector de status-, vermogens- of resterende-tijdentiteit van het apparaat.",
     "In progress": "Bezig", "Finished": "Klaar", "Paused": "Gepauzeerd", "Ready to unload": "Klaar om uit te ruimen",
     "{0} h {1} min": "{0} u {1} min", "{0} min": "{0} min", "left · ready at {0}": "te gaan · klaar om {0}", "Progress": "Voortgang",
+    "Weather (optional)": "Weer (optioneel)", "Show today’s high and low": "Toon de hoogste en laagste temperatuur van vandaag",
+    "High {0}° · Low {1}°": "Max {0}° · min {1}°", "High {0}°": "Max {0}°",
+    "Menu style": "Menustijl", "icons": "Alleen pictogrammen", "labels": "Met namen",
     "Today": "Vandaag", "Tomorrow": "Morgen", "All day": "Hele dag", "Busy": "Bezet",
   };