App 2.25.0: Overview style MG, octagonal dials

After the classic MG dashboards: three octagonal dials with chrome
bezels, cream scales and accent-coloured needles for speed, battery and
power, and a cream line of odometer, trip, usage, climate and clock.
No MG logo. Emulator only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6

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

@@ -130,6 +130,7 @@
     <string name="overview_style_scifi">Sci-fi</string>
     <string name="overview_style_cartoon">Cartoon</string>
     <string name="overview_style_blueprint">Blueprint</string>
+    <string name="overview_style_mg">MG</string>
     <string name="cockpit_battery">BATTERY</string>
     <string name="cockpit_usage">USAGE · 5 MIN</string>
     <string name="cockpit_usage_unit">kWh/100 km</string>