Dashboard Studio 2.2.0: guest invites, personal looks, more themes, Haven widgets and tiles

- Vacuum card: the robot drawn beside its dock by state, last clean, maintenance
- Formula One card: the official F1 look with a user-supplied logo
- Nine more themes; per-person theme, text size and language on Admin, People
- Guest invites: an expiring link and QR code for one dashboard, served on a
  LAN-only guest port, with the Home Assistant connection filtered both ways
- Haven 2.2: home screen widgets, three quick settings tiles, several homes,
  and self-updates from the Haven that Dashboard Studio serves

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

haven/res/values/values.xml

@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="app_name">Haven</string>
+    <string name="widget_desc">A light, scene or thermostat from Home Assistant</string>
+    <string name="tile_label">Haven</string>
     <style name="AppTheme" parent="android:Theme.Material.NoActionBar">
         <item name="android:windowBackground">@drawable/loading</item>
         <item name="android:statusBarColor">@color/bg</item>